Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2004

1.   Organization and Accounting Policies

Morgan Stanley Insured Municipal Income Trust (the "Trust") is registered under the Investment Company Act of 1940, as amended, as a diversified, closed-end management investment company. The Trust's investment objective is to provide current income which is exempt from federal income tax. The Trust was organized as a Massachusetts business trust on March 12, 1992 and commenced operations on February 26, 1993.

The following is a summary of significant accounting policies:

A.   Valuation of Investments — (1) portfolio securities are valued by an outside independent pricing service approved by the Trustees. The pricing service uses both a computerized grid matrix of tax-exempt securities and evaluations by its staff, in each case based on information concerning market transactions and quotations from dealers which reflect the mean between the last reported bid and asked price. The portfolio securities are thus valued by reference to a combination of transactions and quotations for the same or other securities believed to be comparable in quality, coupon, maturity, type of issue, call provisions, trading characteristics and other features deemed to be relevant. The Trustees believe that timely and reliable market quotations are generally not readily available for purposes of valuing tax-exempt securities and that the valuations supplied by the pricing service are more likely to approximate the fair value of such securities; (2) futures are valued at the latest sale price on the commodities exchange on which they trade unless it is determined that such price does not reflect their market value, in which case they will be valued at their fair value as determined in good faith under procedures established by and under the supervision of the Trustees; and (3) short-term debt securities having a maturity date of more than sixty days at time of purchase are valued on a mark-to-market basis until sixty days prior to maturity and thereafter at amortized cost based on their value on the 61st day. Short-term debt securities having a maturity date of sixty days or less at the time of purchase are valued at amortized cost.

B.   Accounting for Investments — Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities. Interest income is accrued daily.

C.   Futures Contracts — A futures contract is an agreement between two parties to buy and sell financial instruments or contracts based on financial indices at a set price on a future date. Upon entering into such a contract, the Trust is required to pledge to the broker cash, U.S. Government securities or other liquid portfolio securities equal to the minimum initial margin requirements of the applicable futures exchange. Pursuant to the contract, the Trust agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in the value of the contract. Such receipts or payments known as variation margin are recorded by the Trust as unrealized gains and losses. Upon closing of the contract, the Trust realizes a gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed.

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Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2004 continued

D.   Federal Income Tax Policy — It is the Trust's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable and nontaxable income to its shareholders. Accordingly, no federal income tax provision is required.

E.   Dividends and Distributions to Shareholders — Dividends and distributions to shareholders are recorded on the ex-dividend date.

F.   Use of Estimates — The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates.

2.   Investment Management Agreement

Pursuant to an Investment Management Agreement with Morgan Stanley Investment Advisors Inc. (the "Investment Manager"), the Trust pays the Investment Manager a management fee, calculated weekly and payable monthly, by applying the annual rate of 0.35% to the Trust's weekly total net assets including preferred shares.

3.   Security Transactions and Transactions with Affiliates

The cost of purchases and proceeds from sales of portfolio securities, excluding short-term investments, for the year ended October 31, 2004, aggregated $87,592,822 and $114,212,146, respectively. Included in the aforementioned are purchases of $6,422,980 with other Morgan Stanley funds.

Morgan Stanley Trust, an affiliate of the Investment Manager, is the Trust's transfer agent. At October 31, 2004, the Trust had transfer agent fees and expenses payable of approximately $18,800.

The Trust has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Trust who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. Aggregate pension costs for the year ended October 31, 2004, included in Trustees' fees and expenses in the Statement of Operations amounted to $6,200. At October 31, 2004, the Trust had an accrued pension liability of $51,514 which is included in accrued expenses in the Statement of Assets and Liabilities. On December 2, 2003, the Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003.

Effective April 1, 2004, the Trust began an unfunded Deferred Compensation Plan (the "Compensation Plan") which allows each independent Trustee to defer payment of all, or a portion, of the fees he receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as

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Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2004 continued

investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Trust.

4.   Preferred Shares of Beneficial Interest

The Trust is authorized to issue up to 1,000,000 non-participating preferred shares of beneficial interest having a par value of $.01 per share, in one or more series, with rights as determined by the Trustees, without approval of the common shareholders. The Trust has issued Series 1 through 5 Auction Rate Preferred Shares ("Preferred Shares") which have a liquidation value of $50,000 per share plus the redemption premium, if any, plus accumulated but unpaid dividends, whether or not declared, thereon to the date of distribution. The Trust may redeem such shares, in whole or in part, at the original purchase price of $50,000 per share plus accumulated but unpaid dividends, whether or not declared, thereon to the date of redemption.

Dividends, which are cumulative, are reset through auction procedures.

SERIES				SHARES*				AMOUNT IN THOUSANDS*				RATE*				RESET DATE				RANGE OF DIVIDEND RATES**
1				400				$	20,000				1.36	%		01/10/05				1.36%
2				900					45,000				1.20			07/11/05				1.20
3				1,000					50,000				2.24			07/10/06				2.20 – 2.24
4				400					20,000				1.48			01/09/06				1.48 – 2.47
5				400					20,000				1.70			09/12/05				1.70

*

As of October 31, 2004.

**

For the year ended October 31, 2004.

Subsequent to October 31, 2004 and up through December 3, 2004, the Trust paid dividends to each of the Series 1 through 5 at rates ranging from 1.20% to 2.24% in the aggregate amount of $428,028.

The Trust is subject to certain restrictions relating to the preferred shares. Failure to comply with these restrictions could preclude the Trust from declaring any distributions to common shareholders or purchasing common shares and/or could trigger the mandatory redemption of preferred shares at liquidation value.

The preferred shares, which are entitled to one vote per share, generally vote with the common shares but vote separately as a class to elect two Trustees and on any matters affecting the rights of the preferred shares.

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Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2004 continued

5.   Common Shares of Beneficial Interest

Transactions in common shares of beneficial interest were as follows:

				SHARES				PAR VALUE				CAPITAL PAID IN EXCESS OF PAR VALUE
Balance, October 31, 2002					25,287,513			$	252,875			$	365,366,853
Treasury shares purchased and retired (weighted average discount 7.90%)*					(1,047,375	)			(10,474	)			(15,224,830	)
Balance, October 31, 2003					24,240,138				242,401				350,142,023
Treasury shares purchased and retired (weighted average discount 8.33%)*					(1,001,300	)			(10,013	)			(14,108,654	)
Balance, October 31, 2004					23,238,838			$	232,388			$	336,033,369

*

The Trustees have voted to retire the shares purchased.

6.   Dividends to Common Shareholders

On September 28, 2004, the Trust declared the following dividends from net investment income:

AMOUNT PER SHARE				RECORD                DATE				PAYABLE                DATE
$0.0675				November 5, 2004					November 19, 2004
$0.0675				December 10, 2004					December 23, 2004

7.   Expense Offset

The expense offset represents a reduction of the custodian fees for earnings on cash balances maintained by the Trust.

8.   Risks Relating to Certain Financial Instruments

The Trust may invest a portion of its assets in residual interest bonds, which are inverse floating rate municipal obligations. The prices of these securities are subject to greater market fluctuations during periods of changing prevailing interest rates than are comparable fixed rate obligations.

To hedge against adverse interest rate changes, the Trust may invest in financial futures contracts or municipal bond index futures contracts ("futures contracts").

These futures contracts involve elements of market risk in excess of the amount reflected in the Statement of Assets and Liabilities. The Trust bears the risk of an unfavorable change in the value of the underlying securities. Risks may also arise upon entering into these contracts from the potential inability of the counterparties to meet the terms of their contracts.

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Morgan Stanley Insured Municipal Income Trust

Notes to Financial Statements October 31, 2004 continued

9.   Federal Income Tax Status

The amount of dividends and distributions from net investment income and net realized capital gains are determined in accordance with federal income tax regulations which may differ from generally accepted accounting principles. These "book/tax" differences are either considered temporary or permanent in nature. To the extent these differences are permanent in nature, such amounts are reclassified within the capital accounts based on their federal tax-basis treatment; temporary differences do not require reclassification. Dividends and distributions which exceed net investment income and net realized capital gains for tax purposes are reported as distributions of paid-in-capital.

The tax character of distributions paid was as follows:

				FOR THE YEAR ENDED OCTOBER 31, 2004				FOR THE YEAR ENDED OCTOBER 31, 2003
Tax-exempt income				$	24,793,993			$	24,879,299
Long-term capital gains					6,940,823				—
Total distributions				$	31,734,816			$	24,879,299
As of October 31, 2004, the tax-basis components of accumulated earnings were as follows:
Undistributed tax-exempt income				$	2,721,112
Undistributed long-term gains					—
Net accumulated earnings					2,721,112
Capital loss carryforward*					(4,714,427	)
Temporary differences					(265,756	)
Net unrealized appreciation					28,461,658
Total accumulated earnings				$	26,202,587

*As of October 31, 2004, the Trust had a net capital loss carryforward of $4,714,427 which will expire on October 31, 2012 to offset future capital gains to the extent provided by regulations.

As of October 31, 2004, the Trust had temporary book/tax differences primarily attributable to book amortization of discounts on debt securities, mark-to-market of open futures contracts and dividend payable and permanent book/tax differences primarily attributable to tax adjustments on debt securities sold by the Trust. To reflect reclassifications arising from the permanent differences, accumulated undistributed net investment income was charged and accumulated net realized loss was credited $2,338.

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Morgan Stanley Insured Municipal Income Trust

Financial Highlights

Selected ratios and per share data for a common share of beneficial interest outstanding throughout each period:

				FOR THE YEAR ENDED OCTOBER 31,
				2004				2003				2002				2001				2000
Selected Per Share Data:
Net asset value, beginning of period				$	15.76			$	15.67			$	15.42			$	14.44			$	13.69
Income (loss) from investment operations:
Net investment income *					0.95				1.01				1.04				1.03				1.01
Net realized and unrealized gain					0.17				0.03				0.11				0.90				0.79
Common share equivalent of dividends paid to preferred shareholders*					(0.12	)			(0.10	)			(0.13	)			(0.22	)			(0.22	)
Total income from investment operations					1.00				0.94				1.02				1.71				1.58
Less dividends and distributions from:
Net investment income					(0.92	)			(0.90	)			(0.82	)			(0.78	)			(0.86	)
Net realized gain					(0.29	)			—				—				—				—
Total dividends and distributions					(1.21	)			(0.90	)			(0.82	)			(0.78	)			(0.86	)
Anti-dilutive effect of acquiring treasury shares *					0.05				0.05				0.05				0.05				0.03
Net asset value, end of period				$	15.60			$	15.76			$	15.67			$	15.42			$	14.44
Market value, end of period				$	14.09			$	14.73			$	14.05			$	14.13			$	12.813
Total Return†					3.91	%			11.53	%			5.35	%			16.70	%			3.29	%
Ratios to Average Net Assets of Common Shareholders:
Total expenses (before expense offset)					0.82	% (1)			0.75	% (1)			0.72	%			0.71	%			0.73	%
Net investment income before preferred stock dividends					6.11	%			6.38	%			6.82	%			6.84	%			7.27	%
Preferred stock dividends					0.76	%			0.66	%			0.87	%			1.43	%			1.59	%
Net investment income available to common shareholders					5.35	%			5.72	%			5.95	%			5.41	%			5.68	%
Supplemental Data:
Net assets applicable to common shareholders, end of period, in thousands					$362,468				$382,145				$396,360				$405,226				$392,513
Asset coverage on preferred shares at end of period					334	%			346	%			355	%			361	%			352	%
Portfolio turnover rate					17	%			43	%			17	%			13	%			11	%

*

The per share amounts were computed using an average number of common shares outstanding during the period.

†

Total return is based upon the current market value on the last day of each period reported. Dividends and distributions are assumed to be reinvested at the prices obtained under the Trust's dividend reinvestment plan. Total return does not reflect brokerage commissions.

(1)

Does not reflect the effect of expense offset of 0.01%.

See Notes to Financial Statements

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Morgan Stanley Insured Municipal Income Trust

Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Trustees of
Morgan Stanley Insured Municipal Income Trust:

We have audited the accompanying statement of assets and liabilities of Morgan Stanley Insured Municipal Income Trust (the "Trust"), including the portfolio of investments, as of October 31, 2004, and the related statements of operations for the year then ended and changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Trust's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. Our procedures included confirmation of securities owned as of October 31, 2004, by correspondence with the custodian and broker. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Morgan Stanley Insured Municipal Income Trust as of October 31, 2004, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America.

Deloitte & Touche LLP
New York, New York
December 14, 2004

2004 Federal Tax Notice (unaudited)

During the year ended October 31, 2004, the Trust paid the following per share amounts from tax-exempt income: $0.946 to common shareholders, $602 to Series 1 preferred shareholders, $520 to Series 2 preferred shareholders, $944 to Series 3 preferred shareholders, $689 to Series 4 preferred shareholders and $766 to Series 5 preferred shareholders. For the year ended October 31, 2004, the Trust paid the following per share amounts from long-term capital gains: $0.264 to common shareholders, $128 to Series 1 preferred shareholders, $131 to Series 2 preferred shareholders, $261 to Series 3 preferred shareholders, $296 to Series 4 preferred shareholders and $138 to Series 5 preferred shareholders.

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Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information

Independent Trustees:

Name, Age and Address of Independent Trustee

Position(s) Held with Registrant

Term of Office and Length of Time Served*

Principal Occupation(s) During Past 5 Years**

Number of Portfolios in Fund Complex Overseen by Trustee***

Other Directorships Held by Trustee

Michael Bozic (63) c/o Kramer Levin Naftalis & Frankel LLP Counsel to the Independent Trustees 919 Third Avenue New York, NY

Trustee

Since April 1994

Private Investor; Director or Trustee of the Retail Funds (since April 1994) and the Institutional Funds (since July 2003); formerly Vice Chairman of Kmart Corporation (December 1998-October 2000), Chairman and Chief Executive Officer of Levitz Furniture Corporation (November 1995-November 1998) and President and Chief Executive Officer of Hills Department Stores (May 1991-July 1995); formerly variously Chairman, Chief Executive Officer, President and Chief Operating Officer (1987-1991) of the Sears Merchandise Group of Sears, Roebuck & Co.

208

Director of Weirton Steel Corporation.

Edwin J. Garn (72) c/o Summit Ventures LLC 1 Utah Center 201 S. Main Street Salt Lake City, UT

Trustee

Since January 1993

Managing Director of Summit Ventures LLC; Director or Trustee of the Retail Funds (since January 1993) and the Institutional Funds (since July 2003); member of the Utah Regional Advisory Board of Pacific Corp.; formerly United States Senator (R-Utah) (1974-1992) and Chairman, Senate Banking Committee (1980-1986), Mayor of Salt Lake City, Utah (1971-1974), Astronaut, Space Shuttle Discovery (April 12-19, 1985), and Vice Chairman, Huntsman Corporation (chemical company).

208

Director of Franklin Covey (time management systems), BMW Bank of North America, Inc. (industrial loan corporation), United Space Alliance (joint venture between Lockheed Martin and the Boeing Company) and Nuskin Asia Pacific (multilevel marketing); member of the board of various civic and charitable organizations.

Wayne E. Hedien (70) c/o Kramer Levin Naftalis & Frankel LLP Counsel to the Independent Trustees 919 Third Avenue New York, NY

Trustee

Since September 1997

Retired; Director or Trustee of the Retail Funds; (since September 1997) and the Institutional Funds (since July 2003); formerly associated with the Allstate Companies (1966-1994), most recently as Chairman of The Allstate Corporation (March 1993-December 1994) and Chairman and Chief Executive Officer of its wholly-owned subsidiary, Allstate Insurance Company (July 1989-December 1994).

208

Director of The PMI Group Inc. (private mortgage insurance); Trustee and Vice Chairman of The Field Museum of Natural History; director of various other business and charitable organizations.

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Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information continued

Name, Age and Address of Independent Trustee

Position(s) Held with Registrant

Term of Office and Length of Time Served*

Principal Occupation(s) During Past 5 Years**

Number of Portfolios in Fund Complex Overseen by Trustee***

Other Directorships Held by Trustee

Dr. Manuel H. Johnson (55) c/o Johnson Smick International, Inc. 2099 Pennsylvania Avenue, N.W. Suite 950 Washington, D.C.

Trustee

Since July 1991

Senior Partner, Johnson Smick International, Inc., a consulting firm; Chairman of the Audit Committee and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2003); Co-Chairman and a founder of the Group of Seven Council (G7C), an international economic commission; formerly Vice Chairman of the Board of Governors of the Federal Reserve System and Assistant Secretary of the U.S. Treasury.

208

Director of NVR, Inc. (home construction); Chairman and Trustee of the Financial Accounting Foundation (oversight organization of the Financial Accounting Standards Board); Director of RBS Greenwich Capital Holdings (financial holding company).

Joseph J. Kearns (62) PMB754 23852 Pacific Coast Highway Malibu, CA

Trustee

Since July 2003

President, Kearns & Associates LLC (investment consulting); Deputy Chairman of the Audit Committee and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since August 1994); previously Chairman of the Audit Committee of the Institutional Funds (October 2001-July 2003); formerly CFO of the J. Paul Getty Trust.

209

Director of Electro Rent Corporation (equipment leasing), The Ford Family Foundation, and the UCLA Foundation.

Michael E. Nugent (68) c/o Triumph Capital, L.P. 445 Park Avenue New York, NY

Trustee

Since July 1991

General Partner of Triumph Capital, L.P., a private investment partnership; Chairman of the Insurance Committee and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2001); formerly Vice President, Bankers Trust Company and BT Capital Corporation (1984-1988).

208

Director of various business organizations.

Fergus Reid (72) c/o Lumelite Plastics Corporation 85 Charles Colman Blvd. Pawling, NY

Trustee

Since July 2003

Chairman of Lumelite Plastics Corporation; Chairman of the Governance Committee and Director or Trustee of the Retail Funds (since July 2003) and the Institutional Funds (since June 1992).

209

Trustee and Director of certain investment companies in the JPMorgan Funds complex managed by J.P. Morgan Investment Management Inc.

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Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information continued

Interested Trustees:

Name, Age and Address of Interested Trustee

Position(s) Held with Registrant

Term of Office and Length of Time Served*

Principal Occupation(s) During Past 5 Years**

Number of Portfolios in Fund Complex Overseen by Trustee***

Other Directorships Held by Trustee

Charles A. Fiumefreddo (71) c/o Morgan Stanley Trust Harborside Financial Center, Plaza Two, Jersey City, NJ

Chairman of the Board and Trustee

Since July 1991

Chairman and Director or Trustee of the Retail Funds (since July 1991) and the Institutional Funds (since July 2003); formerly Chief Executive Officer of the Retail Funds (until September 2002).

208

None

James F. Higgins (56) c/o Morgan Stanley Trust Harborside Financial Center, Plaza Two, Jersey City, NJ

Trustee

Since June 2000

Director or Trustee of the Retail Funds (since June 2000) and the Institutional Funds (since July 2003); Senior Advisor of Morgan Stanley (since August 2000); Director of the Distributor and Dean Witter Realty Inc.; previously President and Chief Operating Officer of the Private Client Group of Morgan Stanley (May 1999-August 2000), and President and Chief Operating Officer of Individual Securities of Morgan Stanley (February 1997-May 1999).

208

Director of AXA Financial, Inc. and The Equitable Life Assurance Society of the United States (financial services).

*

This is the earliest date the Trustee began serving the funds advised by Morgan Stanley Investment Advisors Inc. (the "Investment Manager") (the "Retail Funds").

**

The dates referenced below indicating commencement of services as Director/Trustee for the Retail Funds and the funds advised by Morgan Stanley Investment Management Inc. and Morgan Stanley AIP GP LP (the "Institutional Funds") reflect the earliest date the Director/Trustee began serving the Retail or Institutional Funds as applicable.

***

The Fund Complex includes all open-end and closed-end funds (including all of their portfolios) advised by the Investment Manager and any funds that have an investment advisor that is an affiliated person of the Investment Manager (including but not limited to Morgan Stanley Investment Management Inc.).

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Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information continued

Officers:

Name, Age and Address of Executive Officer

Position(s) Held with Registrant

Term of Office and Length of Time Served*

Principal Occupation(s) During Past 5 Years**

Mitchell M. Merin (51) 1221 Avenue of the Americas New York, NY

President

Since May 1999

President and Chief Operating Officer of Morgan Stanley Investment Management Inc.; President, Director and Chief Executive Officer of the Investment Manager and Morgan Stanley Services; Chairman and Director of the Distributor; Chairman and Director of the Transfer Agent; Director of various Morgan Stanley subsidiaries; President of the Institutional Funds (since July 2003) and President of the Retail Funds (since May 1999); Trustee (since July 2003) and President (since December 2002) of the Van Kampen Closed-End Funds; Trustee (since May 1999) and President (since October 2002) of the Van Kampen Open-End Funds.

Ronald E. Robison (65) 1221 Avenue of the Americas New York, NY

Executive Vice President and Principal Executive Officer

Since April 2003

Principal Executive Officer-Office of the Funds (since November 2003); Managing Director of Morgan Stanley & Co. Incorporated, Managing Director of Morgan Stanley; Managing Director, Chief Administrative Officer and Director of the Investment Manager and Morgan Stanley Services; Chief Executive Officer and Director of the Transfer Agent; Managing Director and Director of the Distributor; Executive Vice President and Principal Executive Officer of the Institutional Funds (since July 2003) and the Retail Funds (since April 2003); Director of Morgan Stanley SICAV (since May 2004); previously President and Director of the Retail Funds (March 2001-July 2003) and Chief Global Operations Officer and Managing Director of Morgan Stanley Investment Management Inc.

Joseph J. McAlinden (61) 1221 Avenue of the Americas New York, NY

Vice President

Since July 1995

Managing Director and Chief Investment Officer of the Investment Manager and Morgan Stanley Investment Management Inc.; Director of the Transfer Agent, Chief Investment Officer of the Van Kampen Funds; Vice President of the Institutional Funds (since July 2003) and the Retail Funds (since July 1995).

Barry Fink (49) 1221 Avenue of the Americas New York, NY

Vice President

Since February 1997

General Counsel (since May 2000) and Managing Director (since December 2000) of Morgan Stanley Investment Management; Managing Director (since December 2000), Secretary (since February 1997) and Director (since July 1998) of the Investment Manager and Morgan Stanley Services; Vice President of the Retail Funds; Assistant Secretary of Morgan Stanley DW; Vice President of the Institutional Funds (since July 2003); Managing Director, Secretary and Director of the Distributor; previously Secretary (February 1997-July 2003) and General Counsel (February 1997-April 2004) of the Retail Funds; Vice President and Assistant General Counsel of the Investment Manager and Morgan Stanley Services (February 1997-December 2001).

Amy R. Doberman (42) 1221 Avenue of Americas New York, NY

Vice President

Since July 2004

Managing Director and General Counsel, U.S. Investment Management; Managing Director of Morgan Stanley Investment Management Inc. and the Investment Manager, Vice President of the Institutional and Retail Funds (since July 2004); previously, Managing Director and General Counsel — Americas, UBS Global Asset Management (July 2000 – July 2004) and General Counsel, Aeltus Investment Management Inc. (January 1997 – July 2000).

Carsten Otto (41) 1221 Avenue of the Americas New York, NY

Chief Compliance Officer

Since October 2004

Executive Director and U.S. Director of Compliance for Morgan Stanley Investment Management (since October 2004); Executive Director of the Investment Adviser and Morgan Stanley Investment Management Inc.; formerly Assistant Secretary and Assistant General Counsel of the Morgan Stanley Retail Funds.

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Morgan Stanley Insured Municipal Income Trust

Trustee and Officer Information continued

Name, Age and Address of Executive Officer

Position(s) Held with Registrant

Term of Office and Length of Time Served*

Principal Occupation(s) During Past 5 Years**

Stefanie V. Chang (37) 1221 Avenue of the Americas New York, NY

Vice President

Since July 2003

Executive Director of Morgan Stanley & Co. Incorporated, Morgan Stanley Investment Management Inc. and the Investment Manager; Vice President of the Institutional Funds (since December 1997) and the Retail Funds (since July 2003); formerly practiced law with the New York law firm of Rogers & Wells (now Clifford Chance US LLP).

Francis J. Smith (39) c/o Morgan Stanley Trust Harborside Financial Center, Plaza Two, Jersey City, NJ

Treasurer and Chief Financial Officer

Treasurer since July 2003 and Chief Financial Officer since September 2002

Executive Director of the Investment Manager and Morgan Stanley Services (since December 2001); previously, Vice President of the Retail Funds (September 2002-July 2003), Vice President of the Investment Manager and Morgan Stanley Services (August 2000-November 2001) and Senior Manager at PricewaterhouseCoopers LLP (January 1998-August 2000).

Thomas F. Caloia (58) c/o Morgan Stanley Trust Harborside Financial Center, Plaza Two, Jersey City, NJ

Vice President

Since July 2003

Executive Director (since December 2002) and Assistant Treasurer of the Investment Manager, the Distributor and Morgan Stanley Services; previously Treasurer of the Retail Funds (April 1989-July 2003); formerly First Vice President of the Investment Manager, the Distributor and Morgan Stanley Services.

Mary E. Mullin (37) 1221 Avenue of the Americas New York, NY

Secretary

Since July 2003

Executive Director of Morgan Stanley & Co. Incorporated, Morgan Stanley Investment Management Inc. and the Investment Manager; Secretary of the Institutional Funds (since June 1999) and the Retail Funds (since July 2003); formerly practiced law with the New York law firms of McDermott, Will & Emery and Skadden, Arps, Slate, Meagher & Flom LLP.

*

This is the earliest date the Officer began serving the Retail Funds. Each Officer serves an indefinite term, until his or her successor is elected.

**

The dates referenced below indicating commencement of service as an Officer for the Retail and Institutional Funds reflect the earliest date the Officer began serving the Retail or Institutional Funds as applicable.

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Trustees Michael Bozic Charles A. Fiumefreddo Edwin J. Garn Wayne E. Hedien James F. Higgins Dr. Manuel H. Johnson Joseph J. Kearns Michael E. Nugent Fergus Reid Officers Charles A. Fiumefreddo Chairman of the Board Mitchell M. Merin President Ronald E. Robison Executive Vice President and Principal Executive Officer Joseph J. McAlinden Vice President Barry Fink Vice President Amy R. Doberman Vice President Carsten Otto Chief Compliance Officer Stefanie V. Chang Vice President Francis J. Smith Treasurer and Chief Financial Officer Thomas F. Caloia Vice President Mary E. Mullin Secretary Transfer Agent Morgan Stanley Trust Harborside Financial Center, Plaza Two Jersey City, New Jersey 07311 Independent Registered Public Accounting Firm Deloitte & Touche LLP Two World Financial Center New York, New York 10281 Investment Manager Morgan Stanley Investment Advisors Inc. 1221 Avenue of the Americas New York, New York 10020 Investments and services offered through Morgan Stanley DW Inc., member SIPC. © 2004 Morgan Stanley 37958RPT-RA04-00904P-Y10/04		MORGAN STANLEY FUNDS
		Morgan Stanley Insured Municipal Income Trust Annual Report October 31, 2004

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Item 2. Code of Ethics.

(a) The Trust has adopted a code of ethics (the "Code of Ethics") that applies
to its principal executive officer, principal financial officer, principal
accounting officer or controller, or persons performing similar functions,
regardless of whether these individuals are employed by the Trust or a third
party.

(b) No information need be disclosed pursuant to this paragraph.

(c) The Trust has amended its Code of Ethics during the period covered by the
shareholder report presented in Item 1 hereto to delete from the end of the
following paragraph on page 2 of the Code the phrase "to the detriment of the
Fund.":

"Each Covered Officer must not use his personal influence or personal
relationship improperly to influence investment decisions or financial reporting
by the Fund whereby the Covered Officer would benefit personally (directly or
indirectly)."

(d) Not applicable.

(e) Not applicable.

(f)

     (1) The Trust's Code of Ethics is attached hereto as Exhibit A.

     (2) Not applicable.

     (3) Not applicable.



Item 3. Audit Committee Financial Expert.

The Trust's Board of Trustees has determined that it has two "audit committee
financial experts" serving on its audit committee, each of whom are
"independent" Trustees: Dr. Manuel H. Johnson and Joseph J. Kearns. Under
applicable securities laws, a person who is determined to be an audit committee
financial expert will not be deemed an "expert" for any purpose, including
without limitation for the purposes of Section 11 of the Securities Act of 1933,
as a result of being designated or identified as an audit committee financial
expert. The designation or identification of a person as an audit committee
financial expert does not impose on such person any duties, obligations, or
liabilities that are greater than the duties, obligations, and liabilities
imposed on such person as a member of the audit committee and Board of Trustees
in the absence of such designation or identification.




Item 4. Principal Accountant Fees and Services.

(a)(b)(c)(d) and (g). Based on fees billed for the periods shown:

 2004
                                             REGISTRANT      COVERED ENTITIES(1)
    AUDIT FEES...........................    $28,989         N/A

    NON-AUDIT FEES
              AUDIT-RELATED FEES.........    $ 5,752(2)      $5,067,400(2)
              TAX FEES...................    $ 4,455(3)      $  545,053(4)
              ALL OTHER FEES.............    $   -           $    -
    TOTAL NON-AUDIT FEES.................    $10,207         $5,612,453
                                                            
    TOTAL................................    $39,196         $5,612,453
                                                            
                                                           
 2003
                                             REGISTRANT      COVERED ENTITIES(1)
    AUDIT FEES...........................    $27,379         N/A
                                                             
    NON-AUDIT FEES                                           
              AUDIT-RELATED FEES.........    $21,284(2)      $1,086,576(2)
              TAX FEES...................    $ 4,346(3)      $  252,500(4)
              ALL OTHER FEES.............    $  -            $    -    (5)
    TOTAL NON-AUDIT FEES.................    $25,630         $1,339,076
                                                             
    TOTAL................................    $53,009         $1,339,076
                                                             
                                                           
N/A- Not applicable, as not required by Item 4.

(1)  Covered Entities include the Adviser (excluding sub-advisors) and any
     entity controlling, controlled by or under common control with the Adviser
     that provides ongoing services to the Registrant.
(2)  Audit-Related Fees represent assurance and related services provided that
     are reasonably related to the performance of the audit of the financial
     statements of the Covered Entities' and funds advised by the Adviser or its
     affiliates, specifically data verification and agreed-upon procedures
     related to asset securitizations and agreed-upon procedures engagements.
(3)  Tax Fees represent tax compliance, tax planning and tax advice services
     provided in connection with the preparation and review of the Registrant's
     tax returns.
(4)  Tax Fees represent tax compliance, tax planning and tax advice services
     provided in connection with the review of Covered Entities' tax returns.
(5)  All other fees represent project management for future business
     applications and improving business and operational processes.

                                        2


(e)(1) The audit committee's pre-approval policies and procedures are as
follows:

                                                                      APPENDIX A

                                 AUDIT COMMITTEE
                          AUDIT AND NON-AUDIT SERVICES
                       PRE-APPROVAL POLICY AND PROCEDURES
                                     OF THE
                  MORGAN STANLEY RETAIL AND INSTITUTIONAL FUNDS

AS ADOPTED AND AMENDED JULY 23, 2004,(1)


     1. STATEMENT OF PRINCIPLES

The Audit Committee of the Board is required to review and, in its sole
discretion, pre-approve all Covered Services to be provided by the Independent
Auditors to the Fund and Covered Entities in order to assure that services
performed by the Independent Auditors do not impair the auditor's independence
from the Fund.

The SEC has issued rules specifying the types of services that an independent
auditor may not provide to its audit client, as well as the audit committee's
administration of the engagement of the independent auditor. The SEC's rules
establish two different approaches to pre-approving services, which the SEC
considers to be equally valid. Proposed services either: may be pre-approved
without consideration of specific case-by-case services by the Audit Committee
("general pre-approval"); or require the specific pre-approval of the Audit
Committee or its delegate ("specific pre-approval"). The Audit Committee
believes that the combination of these two approaches in this Policy will result
in an effective and efficient procedure to pre-approve services performed by the
Independent Auditors. As set forth in this Policy, unless a type of service has
received general pre-approval, it will require specific pre-approval by the
Audit Committee (or by any member of the Audit Committee to which pre-approval
authority has been delegated) if it is to be provided by the Independent
Auditors. Any proposed services exceeding pre-approved cost levels or budgeted
amounts will also require specific pre-approval by the Audit Committee.

The appendices to this Policy describe the Audit, Audit-related, Tax and All
Other services that have the general pre-approval of the Audit Committee. The
term of any general pre-approval is 12 months from the date of pre-approval,
unless the Audit Committee considers and provides a different period and states
otherwise. The Audit Committee will annually review and pre-approve the services
that may be provided by the Independent Auditors without obtaining specific
pre-approval from the Audit Committee. The Audit Committee will add to or
subtract from the list of general pre-approved services from time to time, based
on subsequent determinations.


------------------------
(1)  This Audit Committee Audit and Non-Audit Services Pre-Approval Policy and
     Procedures (the "Policy"), adopted as of the date above, supersedes and
     replaces all prior versions that may have been adopted from time to time.

                                       3


The purpose of this Policy is to set forth the policy and procedures by which
the Audit Committee intends to fulfill its responsibilities. It does not
delegate the Audit Committee's responsibilities to pre-approve services
performed by the Independent Auditors to management.

The Fund's Independent Auditors have reviewed this Policy and believes that
implementation of the Policy will not adversely affect the Independent Auditors'
independence.

     2. DELEGATION

As provided in the Act and the SEC's rules, the Audit Committee may delegate
either type of pre-approval authority to one or more of its members. The member
to whom such authority is delegated must report, for informational purposes
only, any pre-approval decisions to the Audit Committee at its next scheduled
meeting.

     3. AUDIT SERVICES

The annual Audit services engagement terms and fees are subject to the specific
pre-approval of the Audit Committee. Audit services include the annual financial
statement audit and other procedures required to be performed by the Independent
Auditors to be able to form an opinion on the Fund's financial statements. These
other procedures include information systems and procedural reviews and testing
performed in order to understand and place reliance on the systems of internal
control, and consultations relating to the audit. The Audit Committee will
approve, if necessary, any changes in terms, conditions and fees resulting from
changes in audit scope, Fund structure or other items.

In addition to the annual Audit services engagement approved by the Audit
Committee, the Audit Committee may grant general pre-approval to other Audit
services, which are those services that only the Independent Auditors reasonably
can provide. Other Audit services may include statutory audits and services
associated with SEC registration statements (on Forms N-1A, N-2, N-3, N-4,
etc.), periodic reports and other documents filed with the SEC or other
documents issued in connection with securities offerings.

The Audit Committee has pre-approved the Audit services in Appendix B.1. All
other Audit services not listed in Appendix B.1 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     4. AUDIT-RELATED SERVICES

Audit-related services are assurance and related services that are reasonably
related to the performance of the audit or review of the Fund's financial
statements and, to the extent they are Covered Services, the Covered Entities or
that are traditionally performed by the Independent Auditors. Because the Audit
Committee believes that the provision of Audit-related services does not impair
the independence of the auditor and is consistent with the SEC's rules on
auditor independence, the Audit Committee may grant general pre-approval to
Audit-related services. Audit-related services include, among others, accounting
consultations related to accounting, financial reporting or disclosure matters


                                       4


not classified as "Audit services"; assistance with understanding and
implementing new accounting and financial reporting guidance from rulemaking
authorities; agreed-upon or expanded audit procedures related to accounting
and/or billing records required to respond to or comply with financial,
accounting or regulatory reporting matters; and assistance with internal control
reporting requirements under Forms N-SAR and/or N-CSR.

The Audit Committee has pre-approved the Audit-related services in Appendix B.2.
All other Audit-related services not listed in Appendix B.2 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     5. TAX SERVICES

The Audit Committee believes that the Independent Auditors can provide Tax
services to the Fund and, to the extent they are Covered Services, the Covered
Entities, such as tax compliance, tax planning and tax advice without impairing
the auditor's independence, and the SEC has stated that the Independent Auditors
may provide such services.

Pursuant to the preceding paragraph, the Audit Committee has pre-approved the
Tax Services in Appendix B.3. All Tax services in Appendix B.3 must be
specifically pre-approved by the Audit Committee (or by any member of the Audit
Committee to which pre-approval has been delegated).

     6. ALL OTHER SERVICES

The Audit Committee believes, based on the SEC's rules prohibiting the
Independent Auditors from providing specific non-audit services, that other
types of non-audit services are permitted. Accordingly, the Audit Committee
believes it may grant general pre-approval to those permissible non-audit
services classified as All Other services that it believes are routine and
recurring services, would not impair the independence of the auditor and are
consistent with the SEC's rules on auditor independence.

The Audit Committee has pre-approved the All Other services in Appendix B.4.
Permissible All Other services not listed in Appendix B.4 must be specifically
pre-approved by the Audit Committee (or by any member of the Audit Committee to
which pre-approval has been delegated).

     7. PRE-APPROVAL FEE LEVELS OR BUDGETED AMOUNTS

Pre-approval fee levels or budgeted amounts for all services to be provided by
the Independent Auditors will be established annually by the Audit Committee.
Any proposed services exceeding these levels or amounts will require specific
pre-approval by the Audit Committee. The Audit Committee is mindful of the
overall relationship of fees for audit and non-audit services in determining
whether to pre-approve any such services.

     8. PROCEDURES

All requests or applications for services to be provided by the Independent
Auditors that do not require specific approval by the Audit Committee will be
submitted to the Fund's Chief Financial Officer and must include a detailed
description of the services to be

                                       5


rendered. The Fund's Chief Financial Officer will determine whether such
services are included within the list of services that have received the general
pre-approval of the Audit Committee. The Audit Committee will be informed on a
timely basis of any such services rendered by the Independent Auditors. Requests
or applications to provide services that require specific approval by the Audit
Committee will be submitted to the Audit Committee by both the Independent
Auditors and the Fund's Chief Financial Officer, and must include a joint
statement as to whether, in their view, the request or application is consistent
with the SEC's rules on auditor independence.

The Audit Committee has designated the Fund's Chief Financial Officer to monitor
the performance of all services provided by the Independent Auditors and to
determine whether such services are in compliance with this Policy. The Fund's
Chief Financial Officer will report to the Audit Committee on a periodic basis
on the results of its monitoring. Both the Fund's Chief Financial Officer and
management will immediately report to the chairman of the Audit Committee any
breach of this Policy that comes to the attention of the Fund's Chief Financial
Officer or any member of management.

     9. ADDITIONAL REQUIREMENTS

The Audit Committee has determined to take additional measures on an annual
basis to meet its responsibility to oversee the work of the Independent Auditors
and to assure the auditor's independence from the Fund, such as reviewing a
formal written statement from the Independent Auditors delineating all
relationships between the Independent Auditors and the Fund, consistent with
Independence Standards Board No. 1, and discussing with the Independent Auditors
its methods and procedures for ensuring independence.

     10. COVERED ENTITIES

Covered Entities include the Fund's investment adviser(s) and any entity
controlling, controlled by or under common control with the Fund's investment
adviser(s) that provides ongoing services to the Fund(s). Beginning with
non-audit service contracts entered into on or after May 6, 2003, the Fund's
audit committee must pre-approve non-audit services provided not only to the
Fund but also to the Covered Entities if the engagements relate directly to the
operations and financial reporting of the Fund. This list of Covered Entities
would include:

         Morgan Stanley Retail Funds
         ---------------------------
         Morgan Stanley Investment Advisors Inc.
         Morgan Stanley & Co. Incorporated
         Morgan Stanley DW Inc.
         Morgan Stanley Investment Management Inc.
         Morgan Stanley Investment Management Limited
         Morgan Stanley Investment Management Private Limited
         Morgan Stanley Asset & Investment Trust Management Co., Limited
         Morgan Stanley Investment Management Company
         Van Kampen Asset Management
         Morgan Stanley Services Company, Inc.
         Morgan Stanley Distributors Inc.
         Morgan Stanley Trust FSB

                                       6


         Morgan Stanley Institutional Funds
         ----------------------------------
         Morgan Stanley Investment Management Inc.
         Morgan Stanley Investment Advisors Inc.
         Morgan Stanley Investment Management Limited
         Morgan Stanley Investment Management Private Limited
         Morgan Stanley Asset & Investment Trust Management Co., Limited
         Morgan Stanley Investment Management Company
         Morgan Stanley & Co. Incorporated
         Morgan Stanley Distribution, Inc.
         Morgan Stanley AIP GP LP
         Morgan Stanley Alternative Investment Partners LP


(e)(2) Beginning with non-audit service contracts entered into on or after May
6, 2003, the audit committee also is required to pre-approve services to Covered
Entities to the extent that the services are determined to have a direct impact
on the operations or financial reporting of the Registrant. 100% of such
services were pre-approved by the audit committee pursuant to the Audit
Committee's pre-approval policies and procedures (attached hereto).

(f) Not applicable.

(g) See table above.

(h) The audit committee of the Board of Trustees has considered whether the
provision of services other than audit services performed by the auditors to the
Registrant and Covered Entities is compatible with maintaining the auditors'
independence in performing audit services.


Item 5. Audit Committee of Listed Registrants.

(a) The Trust has a separately-designated standing audit committee established
in accordance with Section 3(a)(58)(A) of the Exchange Act whose members are:
Michael Bozic, Edwin J. Garn, Wayne E. Hedien, Manual H. Johnson, Joseph J.
Kearns, Michael Nugent and Fergus Reid.

(b) Not applicable.


Item 6.

See Item 1.


Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End
Management Investment Companies.

The Trust invests in exclusively non-voting securities and therefore this item
is not applicable.

                                       7


Item 8. Closed-End Fund Repurchases



                              REGISTRANT PURCHASE OF EQUITY SECURITIES
------------------------------------------------------------------------------------------------------------
                                                                                          (d) Maximum Number
                                                                                          (or Approximate
                                                                    (c) Total Number of   Dollar Value) of
                                                                    Shares (or Units)     Shares (or Units)
                                                                    Purchased as Part     that May Yet Be
                       (a) Total Number of   (b) Average Price      of Publicly           Purchased Under
                       Shares (or Units)     Paid per Share (or     Announced Plans or    the Plans or
Period                 Purchased             Unit)                  Programs              Programs
------------------------------------------------------------------------------------------------------------
                                                                                     
November 1, 2003 ---
November 30, 2003             65,100                $14.7197               N/A                   N/A
------------------------------------------------------------------------------------------------------------
December 1, 2003 ---                                                  
December 31, 2003             70,500                $14.8350               N/A                   N/A
------------------------------------------------------------------------------------------------------------
January 1, 2004 ---                                                   
January 31, 2004              42,800                $14.9436               N/A                   N/A
------------------------------------------------------------------------------------------------------------
February 1, 2004 ---                                                  
February 29, 2004             34,200                $15.1417               N/A                   N/A
------------------------------------------------------------------------------------------------------------
March 1, 2004 ---                                                     
March 31, 2004                10,800                $15.2708               N/A                   N/A
------------------------------------------------------------------------------------------------------------
April 1, 2004 ---                                                     
April 30, 2004                97,500                $13.9506               N/A                   N/A
------------------------------------------------------------------------------------------------------------
May 1, 2004 ---                                                       
May 31, 2004                 137,900                $13.4805               N/A                   N/A
------------------------------------------------------------------------------------------------------------
June 1, 2004 ---                                                      
June 30, 2004                121,800                $13.4960               N/A                   N/A
------------------------------------------------------------------------------------------------------------
July 1, 2004 ---                                                      
July 31, 2004                 97,700                $13.8992               N/A                   N/A
------------------------------------------------------------------------------------------------------------
August 1, 2004 ---                                                    
August 31, 2004               79,400                $14.1922               N/A                   N/A
------------------------------------------------------------------------------------------------------------
September 1, 2004 ---                                                 
September 30, 2004           104,900                $14.2441               N/A                   N/A
------------------------------------------------------------------------------------------------------------
October 1, 2004 ---                                                   
October 31, 2004             138,700                $14.0483               N/A                   N/A
------------------------------------------------------------------------------------------------------------
Total                      1,001,300                $14.3518               N/A                   N/A
------------------------------------------------------------------------------------------------------------
                                                              
                                                                   
                                       8


Item 9. Submission of Matters to a Vote of Security Holders

Not applicable.


Item 10 - Controls and Procedures

(a) The Trust's principal executive officer and principal financial officer have
concluded that the Trust's disclosure controls and procedures are sufficient to
ensure that information required to be disclosed by the Trust in this Form N-CSR
was recorded, processed, summarized and reported within the time periods
specified in the Securities and Exchange Commission's rules and forms, based
upon such officers' evaluation of these controls and procedures as of a date
within 90 days of the filing date of the report.

(b) There were no changes in the registrant's internal control over financial
reporting that occurred during the registrant's most recent fiscal half-year
(the registrant's second fiscal half-year in the case of an annual report) that
has materially affected, or is reasonably likely to materially affect, the
registrant's internal control over financial reporting.


Item 11 Exhibits

(a) The Code of Ethics for Principal Executive and Senior Financial Officers is
attached hereto.

(b) A separate certification for each principal executive officer and principal
financial officer of the registrant are attached hereto as part of EX-99.CERT.


                                       9


                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, the registrant has duly caused this report
to be signed on its behalf by the undersigned, thereunto duly authorized.

Morgan Stanley Insured Municipal Income Trust

/s/ Ronald E. Robison
Ronald E. Robison
Principal Executive Officer
December 14, 2004


         Pursuant to the requirements of the Securities Exchange Act of 1934 and
the Investment Company Act of 1940, this report has been signed by the following
persons on behalf of the registrant and in the capacities and on the dates
indicated.

/s/ Ronald E. Robison
Ronald E. Robison
Principal Executive Officer
December 14, 2004

/s/ Francis Smith
Francis Smith
Principal Financial Officer
December 14, 2004







                                       10


           CODE OF ETHICS FOR PRINCIPAL EXECUTIVE AND SENIOR FINANCIAL
                                    OFFICERS
                           ADOPTED SEPTEMBER 28, 2004


I.   This Code of Ethics (the "Code") for the investment companies within the
     Morgan Stanley complex identified in Exhibit A (collectively, "Funds" and
     each, a "Fund") applies to each Fund's Principal Executive Officer,
     President, Principal Financial Officer and Treasurer (or persons performing
     similar functions) ("Covered Officers" each of whom are set forth in
     Exhibit B) for the purpose of promoting:

honest and ethical conduct, including the ethical handling of actual or apparent
conflicts of interest between personal and professional relationships.

full, fair, accurate, timely and understandable disclosure in reports and
documents that a company files with, or submits to, the Securities and Exchange
Commission ("SEC") and in other public communications made by the Fund;

compliance with applicable laws and governmental rules and regulations;

prompt internal reporting of violations of the Code to an appropriate person or
persons identified in the Code; and

accountability for adherence to the Code.

         Each Covered Officer should adhere to a high standard of business
ethics and should be sensitive to situations that may give rise to actual as
well as apparent conflicts of interest. Any question about the application of
the Code should be referred to the General Counsel or his/her designee (who is
set forth in Exhibit C).

II.  COVERED OFFICERS SHOULD HANDLE ETHICALLY ACTUAL AND APPARENT CONFLICTS OF
     INTEREST

         OVERVIEW. A "conflict of interest" occurs when a Covered Officer's
private interest interferes, or appears to interfere, with the interests of, or
his service to, the Fund. For example, a conflict of interest would arise if a
Covered Officer, or a member of his family, receives improper personal benefits
as a result of his position with the Fund.

         Certain conflicts of interest arise out of the relationships between
Covered Officers and the Fund and already are subject to conflict of interest
provisions in the Investment Company Act of 1940 ("Investment Company Act") and
the Investment Advisers Act of 1940 ("Investment Advisers Act"). For example,
Covered Officers may not individually engage in certain transactions (such as
the purchase or sale of securities or other property) with the Fund because of
their status as "affiliated persons" (as defined in the Investment Company Act)
of the Fund. The Fund's and its investment adviser's compliance programs and
procedures are designed to prevent, or identify and correct,

                                       11


violations of these provisions. This Code does not, and is not intended to,
repeat or replace these programs and procedures, and such conflicts fall outside
the parameters of this Code, unless or until the General Counsel determines that
any violation of such programs and procedures is also a violation of this Code.

         Although typically not presenting an opportunity for improper personal
benefit, conflicts may arise from, or as a result of, the contractual
relationship between the Fund and its investment adviser of which the Covered
Officers are also officers or employees. As a result, this Code recognizes that
the Covered Officers will, in the normal course of their duties (whether
formally for the Fund or for the investment adviser, or for both), be involved
in establishing policies and implementing decisions that will have different
effects on the Fund and its investment adviser. The participation of the Covered
Officers in such activities is inherent in the contractual relationship between
the Fund and the investment adviser and is consistent with the performance by
the Covered Officers of their duties as officers of the Fund. Thus, if performed
in conformity with the provisions of the Investment Company Act and the
Investment Advisers Act, such activities will be deemed to have been handled
ethically. In addition, it is recognized by the Funds' Boards of
Directors/Trustees ("Boards") that the Covered Officers may also be officers or
employees of one or more other investment companies covered by this or other
codes.

         Other conflicts of interest are covered by the Code, even if such
conflicts of interest are not subject to provisions in the Investment Company
Act and the Investment Advisers Act. The following list provides examples of
conflicts of interest under the Code, but Covered Officers should keep in mind
that these examples are not exhaustive. The overarching principle is that the
personal interest of a Covered Officer should not be placed improperly before
the interest of the Fund.

         Each Covered Officer must not:

use his personal influence or personal relationships improperly to influence
investment decisions or financial reporting by the Fund whereby the Covered
Officer would benefit personally (directly or indirectly);

cause the Fund to take action, or fail to take action, for the individual
personal benefit of the Covered Officer rather than the benefit of the Fund; or

use material non-public knowledge of portfolio transactions made or contemplated
for, or actions proposed to be taken by, the Fund to trade personally or cause
others to trade personally in contemplation of the market effect of such
transactions.

         Each Covered Officer must, at the time of signing this Code, report to
the General Counsel all affiliations or significant business relationships
outside the Morgan Stanley complex and must update the report annually.

         Conflict of interest situations should always be approved by the
General Counsel and communicated to the relevant Fund or Fund's Board. Any
activity or relationship that would present such a conflict for a Covered
Officer would likely also present a conflict for the Covered Officer if an
immediate member of the Covered Officer's family

                                       12


living in the same household engages in such an activity or has such a
relationship. Examples of these include:

service or significant business relationships as a director on the board of any
public or private company;

accepting directly or indirectly, anything of value, including gifts and
gratuities in excess of $100 per year from any person or entity with which the
Fund has current or prospective business dealings, not including occasional
meals or tickets for theatre or sporting events or other similar entertainment;
provided it is business-related, reasonable in cost, appropriate as to time and
place, and not so frequent as to raise any question of impropriety;

any ownership interest in, or any consulting or employment relationship with,
any of the Fund's service providers, other than its investment adviser,
principal underwriter, or any affiliated person thereof; and

a direct or indirect financial interest in commissions, transaction charges or
spreads paid by the Fund for effecting portfolio transactions or for selling or
redeeming shares other than an interest arising from the Covered Officer's
employment, such as compensation or equity ownership.

III. DISCLOSURE AND COMPLIANCE

Each Covered Officer should familiarize himself/herself with the disclosure and
compliance requirements generally applicable to the Funds;

each Covered Officer must not knowingly misrepresent, or cause others to
misrepresent, facts about the Fund to others, whether within or outside the
Fund, including to the Fund's Directors/Trustees and auditors, or to
governmental regulators and self-regulatory organizations;

each Covered Officer should, to the extent appropriate within his area of
responsibility, consult with other officers and employees of the Funds and their
investment advisers with the goal of promoting full, fair, accurate, timely and
understandable disclosure in the reports and documents the Funds file with, or
submit to, the SEC and in other public communications made by the Funds; and

it is the responsibility of each Covered Officer to promote compliance with the
standards and restrictions imposed by applicable laws, rules and regulations.

IV.  REPORTING AND ACCOUNTABILITY

         Each Covered Officer must:

upon adoption of the Code (thereafter as applicable, upon becoming a Covered
Officer), affirm in writing to the Boards that he has received, read and
understands the Code;

                                       13


annually thereafter affirm to the Boards that he has complied with the
requirements of the Code;

not retaliate against any other Covered Officer, other officer or any employee
of the Funds or their affiliated persons for reports of potential violations
that are made in good faith; and

notify the General Counsel promptly if he/she knows or suspects of any violation
of this Code. Failure to do so is itself a violation of this Code.

         The General Counsel is responsible for applying this Code to specific
situations in which questions are presented under it and has the authority to
interpret this Code in any particular situation. However, any waivers(2) sought
by a Covered Officer must be considered by the Board of the relevant Fund or
Funds.

         The Funds will follow these procedures in investigating and enforcing
this Code:

the General Counsel will take all appropriate action to investigate any
potential violations reported to him;

if, after such investigation, the General Counsel believes that no violation has
occurred, the General Counsel is not required to take any further action;

any matter that the General Counsel believes is a violation will be reported to
the relevant Fund's Audit Committee;

if the directors/trustees/managing general partners who are not "interested
persons" as defined by the Investment Company Act (the "Independent
Directors/Trustees/Managing General Partners") of the relevant Fund concur that
a violation has occurred, they will consider appropriate action, which may
include review of, and appropriate modifications to, applicable policies and
procedures; notification to appropriate personnel of the investment adviser or
its board; or a recommendation to dismiss the Covered Officer or other
appropriate disciplinary actions;

the Independent Directors/Trustees/Managing General Partners of the relevant
Fund will be responsible for granting waivers of this Code, as appropriate; and

any changes to or waivers of this Code will, to the extent required, be
disclosed as provided by SEC rules.

V. OTHER POLICIES AND PROCEDURES

         This Code shall be the sole code of ethics adopted by the Funds for
purposes of Section 406 of the Sarbanes-Oxley Act of 2002 and the rules and
forms applicable to

----------------
(2)  Item 2 of Form N-CSR defines "waiver" as "the approval by the registrant of
     a material departure from a provision of the code of ethics."

                                       14


registered investment companies thereunder. Insofar as other policies or
procedures of the Funds, the Funds' investment advisers, principal underwriters,
or other service providers govern or purport to govern the behavior or
activities of the Covered Officers who are subject to this Code, they are
superseded by this Code to the extent that they overlap or conflict with the
provisions of this Code unless any provision of this Code conflicts with any
applicable federal or state law, in which case the requirements of such law will
govern. The Funds' and their investment advisers' and principal underwriters'
codes of ethics under Rule 17j-1 under the Investment Company Act and Morgan
Stanley's Code of Ethics are separate requirements applying to the Covered
Officers and others, and are not part of this Code.

VI. AMENDMENTS

         Any amendments to this Code, other than amendments to Exhibits A, B
or C, must be approved or ratified by a majority vote of the Board of each Fund,
including a majority of Independent Directors/Trustees/Managing General
Partners.

VII. CONFIDENTIALITY

         All reports and records prepared or maintained pursuant to this Code
will be considered confidential and shall be maintained and protected
accordingly. Except as otherwise required by law or this Code, such matters
shall not be disclosed to anyone other than the Independent
Directors/Trustees/Managing General Partners of the relevant Fund or Funds and
their counsel, the relevant Fund or Funds and their counsel and the relevant
investment adviser and its counsel.





                                       15


VIII. INTERNAL USE

         The Code is intended solely for the internal use by the Funds and does
not constitute an admission, by or on behalf of any Fund, as to any fact,
circumstance, or legal conclusion



I have read and understand the terms of the above Code. I recognize the
responsibilities and obligations incurred by me as a result of my being subject
to the Code. I hereby agree to abide by the above Code.


-------------------------

Date:
      -------------------





                                       16


                                    EXHIBIT B
                                    ---------

                               INSTITUTIONAL FUNDS
                                COVERED OFFICERS
                                ----------------

                          Mitchell M. Merin - President
  Ronald E. Robison - Executive Vice President and Principal Executive Officer
            James W. Garrett - Chief Financial Officer and Treasurer


                                  RETAIL FUNDS
                                COVERED OFFICERS
                                ----------------

                          Mitchell M. Merin - President
  Ronald E. Robison - Executive Vice President and Principal Executive Officer
               Frank Smith - Chief Financial Officer and Treasurer





                                       17


                                    EXHIBIT C
                                    ---------

                                 GENERAL COUNSEL
                                 ---------------

                                   Barry Fink














                                       18


                                                                   EXHIBIT 11 B1

                  CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

                                 CERTIFICATIONS

I, Ronald E. Robison, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley Insured
     Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) for the
     registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

[b)  Omitted.]

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the registrant's most recent
     fiscal half-year (the registrant's second fiscal half-year in the case of
     an annual report) that has materially affected, or is reasonably likely to
     materially affect, the registrant's internal control over financial
     reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):

a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

                                       19


b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.

Date: December 14, 2004

                                                   /s/ Ronald E. Robison
                                                   Ronald E. Robison
                                                   Principal Executive Officer







                                       20


                                                                   EXHIBIT 11 B2

                  CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

                                 CERTIFICATIONS

I, Francis Smith, certify that:

1.   I have reviewed this report on Form N-CSR of Morgan Stanley Insured
     Municipal Income Trust;

2.   Based on my knowledge, this report does not contain any untrue statement of
     a material fact or omit to state a material fact necessary to make the
     statements made, in light of the circumstances under which such statements
     were made, not misleading with respect to the period covered by this
     report;

3.   Based on my knowledge, the financial statements and other financial
     information included in this report, fairly present in all material
     respects the financial condition, results of operations, changes in net
     assets, and cash flows (if the financial statements are required to include
     a statement of cash flows) of the registrant as of, and for, the periods
     presented in this report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Rule 30a-3(c) under the Investment Company Act of 1940) for the
     registrant and have:

a)   designed such disclosure controls and procedures, or caused such disclosure
     controls and procedures to be designed under our supervision, to ensure
     that material information relating to the registrant, including its
     consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

[b)  Omitted.]

c)   evaluated the effectiveness of the registrant's disclosure controls and
     procedures and presented in this report our conclusions about the
     effectiveness of the disclosure controls and procedures, as of a date
     within 90 days prior to the filing date of this report based on such
     evaluation; and

d)   disclosed in this report any change in the registrant's internal control
     over financial reporting that occurred during the registrant's most recent
     fiscal half-year (the registrant's second fiscal half-year in the case of
     an annual report) that has materially affected, or is reasonably likely to
     materially affect, the registrant's internal control over financial
     reporting; and

5.   The registrant's other certifying officer(s) and I have disclosed to the
     registrant's auditors and the audit committee of the registrant's board of
     directors (or persons performing the equivalent functions):

a)   all significant deficiencies and material weaknesses in the design or
     operation of internal control over financial reporting which are reasonably
     likely to adversely affect the registrant's ability to record, process,
     summarize, and report financial information; and

                                       21


b)   any fraud, whether or not material, that involves management or other
     employees who have a significant role in the registrant's internal controls
     over financial reporting.

Date: December 14, 2004

                                                     /s/ Francis Smith
                                                     Francis Smith
                                                     Principal Financial Officer






                                       22


                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

6.   Morgan Stanley Insured Municipal Income Trust

         In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2004 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.



Date: December 14, 2004                             /s/ Ronald E. Robison
                                                    ---------------------------
                                                    Ronald E. Robison
                                                    Principal Executive Officer




A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley Insured Municipal Income Trust and will be retained
by Morgan Stanley Insured Municipal Income Trust and furnished to the Securities
and Exchange Commission or its staff upon request.




                                       23


                            SECTION 906 CERTIFICATION

                Certification Pursuant to 18 U.S.C. Section 1350,
                             As Adopted Pursuant to
                  Section 906 of the Sarbanes-Oxley Act of 2002

Morgan Stanley Insured Municipal Income Trust

         In connection with the Report on Form N-CSR (the "Report") of the
above-named issuer for the period ended October 31, 2004 that is accompanied by
this certification, the undersigned hereby certifies that:

1.   The Report fully complies with the requirements of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

2.   The information contained in the Report fairly presents, in all material
     respects, the financial condition and results of operations of the Issuer.



Date: December 14, 2004                           /s/ Francis Smith
                                                  ----------------------
                                                  Francis Smith
                                                  Principal Financial Officer


A signed original of this written statement required by Section 906 has been
provided to Morgan Stanley Insured Municipal Income Trust and will be retained
by Morgan Stanley Insured Municipal Income Trust and furnished to the Securities
and Exchange Commission or its staff upon request.






                                       24