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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000950137-05-011422.txt : 20050919
<SEC-HEADER>0000950137-05-011422.hdr.sgml : 20050919
<ACCEPTANCE-DATETIME>20050916200537
ACCESSION NUMBER:		0000950137-05-011422
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20050919
DATE AS OF CHANGE:		20050916
EFFECTIVENESS DATE:		20050919

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
		CENTRAL INDEX KEY:			0000884152
		IRS NUMBER:				363810337
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-126305
		FILM NUMBER:		051090047

	BUSINESS ADDRESS:	
		STREET 1:		VAN KAMPEN INVESTMENTS INC.
		STREET 2:		1221 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
		BUSINESS PHONE:		2127625441

	MAIL ADDRESS:	
		STREET 1:		VAN KAMPEN INVESTMENTS INC.
		STREET 2:		1221 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VAN KAMPEN AMERICAN CAPITAL MUNICIPAL OPPORTUNITY TRUST
		DATE OF NAME CHANGE:	19960102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VAN KAMPEN MERRITT MUNICIPAL OPPORTUNITY TRUST
		DATE OF NAME CHANGE:	19920929
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>c98525d2e497.txt
<DESCRIPTION>497
<TEXT>
<PAGE>
[VAN KAMPEN INVESTMENTS LOGO]



September 16, 2005

Dear Shareholder,

Several days ago, proxy materials were mailed to you with regard to the proposed
reorganization of certain Van Kampen Funds. Due to an error by Computershare
Fund Services, our proxy vendor, the wrong proxy statement may have been mailed
to you. As a result, we are asking that you discard any proxy materials
previously received.

Enclosed, please find the correct proxy materials associated with your
investment in the Van Kampen Funds. The costs associated with printing and
mailing of the enclosed correct proxy materials will be borne by the proxy
vendor and not by the Van Kampen Funds. We ask that you kindly review the
enclosed proxy materials and cast your vote by marking the enclosed proxy card
and returning it in the envelope provided. If it is more convenient, you may
cast your vote by telephone or Internet. Please see the enclosed proxy card for
further instructions.

If you have already cast your vote in connection with the proxy card you
previously received, please note that votes associated with that card will not
be counted. YOUR VOTE IS IMPORTANT. We ask that you mail your proxy card or
record your voting instructions by telephone or via the Internet promptly.

The Joint Special Meeting of Shareholders (the "Meeting") is scheduled to be
held on September 23, 2005. We realize receipt of the correct material at this
late date does not give you much time to cast your vote prior to the scheduled
meeting date. Therefore, at the September 23, 2005 Meeting, management intends
to propose an adjournment of the Meeting until a later date which will provide
you with the opportunity and time to cast your vote.

We apologize for any inconvenience this error may have caused.

Sincerely,

Van Kampen Funds


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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