UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-05597 Morgan Stanley Municipal Income Opportunities Trust --------------------------------------------------- (Exact name of registrant as specified in charter) 522 Fifth Avenue, New York, New York 10036 -------------------------------------------------------------------------------- (Address of principal executive offices) (Zip code) Amy Doberman, Esq. Managing Director Morgan Stanley Investment Advisors Inc. 522 Fifth Avenue New York, New York 10036 --------------------------------------- (Name and address of agent for service) Registrant's telephone number, including area code: 800-869-6397 Date of fiscal year end: 5/31 Date of reporting period: 7/1/06 - 6/30/07 ******************************* FORM N-Px REPORT ******************************* ICA File Number: 811-05597 Reporting Period: 07/01/2006 - 06/30/2007 Morgan Stanley Municipal Income Opportunities Trust ============= MORGAN STANLEY MUNICIPAL INCOME OPPORTUNITIES TRUST ============== The Registrant held no securities during the period July 1, 2006 through June 30, 2007 which required proxy votes and therefore there are no voting records to report. ========== END NPX REPORT SIGNATURES Pursuant to the requirements of 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. (Registrant): Morgan Stanley Municipal Income Opportunities Trust --------------------------------------------------- By (Signature and Title): /s/ Ronald E. Robison --------------------------------------------------------------- President and Principal Executive Officer - Office of the Funds Date August 28, 2007 2