Monthly Dividend Announcements and ROP 19(a-1) Notices

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April 2008

Important Information for Shareholders

May 2008
A Word about Your Dividend

The Board of Trustees of the following Van Kampen Funds recently approved a reduction in the fund's monthly dividend. This decrease was effective May 1, 2008, and is first payable May 30, 2008.

Core Plus Fixed Income Fund	Class A Shares	Class B Shares	Class C Shares	Class I Shares
Previous Dividend Level Per Share	$0.0425	$0.0361	$0.0361	$0.0446
New Dividend Level Per Share	$0.0263	$0.0202	$0.0202	$0.0283

The Van Kampen Funds’ 12(b)-1 Plan is a reimbursement plan. This means that in the event that revenues collected under the Plan (distribution and service fees) exceed actual expenses under the Plan (compensation paid out to financial advisors), over a period of time, the amount of this excess is reimbursed back to the fund. This reimbursement results in lower 12(b)-1 fees for the fund, and in some cases may result in certain share classes having lower operating expenses than other share classes over a short period.

A fund passes any reimbursement on to shareholders the month it is received. If a fund receives a reimbursement one month and no reimbursement the following month the following monthly dividend will be adjusted downward to reflect the absence of the reimbursement.

Very small variances in dividend payout that are 12b-1 expense related have to do with the calculation of the per share allocation of expense. Assets Under Management (AUM) are a variable in this equation. As they fluctuate, the allocation of expense to the various share classes will shift slightly causing slight shifts in the dividend.

In light of this activity, management has approved distribution rate changes to the following Van Kampen Funds as outlined below. These new dividend rates were effective May 1, 2008, and are first payable on May 30, 2008. There is no assurance that this type of situation will continue in the future.

CA Insured Tax Free Income Fund	Class C Shares
Previous Dividend Level Per Share	$0.0506
New Dividend Level Per Share	$0.0530

IU08-02772P-N05/08

Important Notice for Shareholders of Van Kampen Dynamic Credit Opportunities Fund

May 30, 2008

The Board of Trustees of Van Kampen Dynamic Credit Opportunities Fund recently approved a reduction in the fund's monthly dividend. As LIBOR decreased over the last few months income to the portfolio has decreased as the loans have reset to the new LIBOR rates. This decrease was effective May 1, 2008, and is first payable May 30, 2008.

IU08-02805P-N05/08

Important Notice for Shareholders of Van Kampen Senior Income Trust

May 30, 2008

The Board of Trustees of Van Kampen Senior Income Trust recently approved a reduction in the trust's monthly dividend. As LIBOR decreased over the last few months income to the portfolio has decreased as the loans have reset to the new LIBOR rates. This decrease was effective May 1, 2008, and is first payable May 30, 2008.

IU08-02804P-N05/08

Contacting Us
Thank you for your trust and confidence in Van Kampen. If you have any questions, please call (800) 847-2424 for open-end funds or (800) 341-2929 for closed-end funds. You may also send us an e-mail by visiting vankampen.com and selecting Contact Us.