POWER OF ATTORNEY



 Know all by these presents, that the undersigned hereby constitutes and appoints each of

Jonathan F. Klein and W. Ming Shao, signing singly, the undersigned's true and lawful attorney-in-fact

to:



(1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer

and/or director of MicroStrategy Incorporated (the "Company"), Forms 3, 4, and 5 in accordance with

Section 16(a) of the Securities Exchange Act of 1934 and the rules thereunder;



(2) do and perform any and all acts for and on behalf of the undersigned which may be necessary

or desirable to complete and execute any such Form 3, 4, or 5 and timely file such form with the

United States Securities and Exchange Commission and any stock exchange or similar authority; and



(3) take any other action of any type whatsoever in connection with the foregoing which, in the

opinion of such attorney-in-fact, may be of benefit to, and in the best interest of, or legally required

by, the undersigned, it being understood that the documents executed by such attorney-in-fact on

behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain

such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.



The undersigned hereby grants to each such attorney-in-fact full power and authority to do and

perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the

exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the

undersigned might or could do if personally present, with full power of substitution or revocation,

hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or

substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and

powers herein granted.  The undersigned acknowledges that the foregoing attorneys-in-fact, in

serving in such capacity at the request of the undersigned, are not assuming, nor is the Company

assuming, any of the undersigned's responsibilities to comply with, or the undersigned's liability

under, Section 16 of the Securities Exchange Act of 1934.



This Power of Attorney shall remain in full force and effect until the undersigned is no longer required

to file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities

issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the

foregoing attorneys-in-fact.



IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of the

date written below.



Signature: /s/  Douglas K. Thede

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Print Name:  Douglas K. Thede

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Print Date:  April 1, 2009

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