Aim Counselor Series Trust DEFA14A Additional proxy soliciting materials

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Filed by the Registrantþ
Filed by a Party other than the Registranto

Check the appropriate box:

o		Preliminary Proxy Statement
o		Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
o		Definitive Proxy Statement
þ		Definitive Additional Materials
o		Soliciting Material Pursuant to § 240.14a-11(c) or § 240.14a-12

AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES FUND)
AIM INVESTMENT FUNDS (INVESCO INVESTMENT FUNDS)

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

þ		No fee required.

o		Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

	1)		Title of each class of securities to which transaction applies:



	2)		Aggregate number of securities to which transaction applies:



	3)		Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):



	4)		Proposed maximum aggregate value of transaction:



	5)		Total fee paid:

o		Fee paid previously with preliminary materials.

o		Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing.

	1)		Amount Previously Paid:



	2)		Form, Schedule or Registration Statement No.:



	3)		Filing Party:



	4)		Date Filed:

INVESCO GROUP OF FUNDS

IMPORTANT PROXY NEWS

MEETING ADJOURNED TO
May 11, 2011
11 Greenway Plaza, Suite 2500
Houston, Texas 77046-1173

Recently we distributed proxy material regarding the Special Meeting of Shareholders for the Invesco Group of Funds. This meeting, which was originally scheduled for April 14, 2011, has been adjourned to May 11, 2011 at 3:00 p.m. Central Time. Our records indicate that we have not received voting instructions for your account(s). In an effort to avoid incurring any further expenses, we are asking you to please take a moment right now to submit your vote.

To avoid adjournments and additional solicitation costs, your Board of Trustees is asking you to use the enclosed proxy card to authorize your proxy"FOR”the approval of the proposal.

Proxy materials and other fund literature may be reviewed and downloaded online at www.invesco.com, or by calling Invesco Investment Services, Inc. at 1-800-959-4246.

Your vote is important no matter how many shares you own. In order for your vote to be represented, we must receive your instructions prior to your Fund’s meeting date.

For your convenience, please utilize any of the following methods to submit your vote:

1.By Internet

Follow the simple instructions on your voting instruction form.

2.By Touch-tone Phone

Please call the toll-free number located on your voting instruction form and follow the simple instructions.

3.By Mail

Simply return your executed voting instruction form in the envelope provided.

Please take a moment and vote today! Thank you.

A1OBORETAIL