Definitive Additional Materials



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Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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The following e-mail was sent by Autodesk, Inc. (the “Company”) to employees of the Company on October 10, 2007.



Re: Upcoming shareholder vote on employee stock option plan

Autodesk employees,

The Autodesk Board of Directors recently approved a new stock option plan for employees, to become effective when the current plan expires next year. Because this new plan also requires stockholder approval to become effective, last week we sent a proxy proposal to our stockholders describing the plan. The stockholders will have the opportunity to vote on this proposal at a special stockholder meeting on November 6, 2007.

If you owned shares (not options) of Autodesk stock on September 21, 2007, you will receive proxy information and voting instructions. If you have instructed your stock broker to send these materials to you electronically, watch your e-mail. If you have elected regular mail notification, be on the lookout for hard-copy material.

Your vote in this matter is important. If you haven’t received your proxy material by October 19, 2007 please contact John Clancy in Investor Relations at 415.507.6373 or

Thanks for your interest and cooperation.

Al Castino, Senior Vice President and Chief Financial Officer