You will find the correct key in the msdn foxpro download page. You are using the key for all previous versions which does not work for vfp 9.

>Hi all,
>
>I have MSDN Universal. I've downloaded the VFP 9 ISO file, burned a CD from it and copied the product key from my subscription. According to that page, it was the same as my VFP 8 key -- the key line read "Visual FoxPro (All Versions)" and I didn't see a special line for the new version.
>
>Yet, when I try to install, I'm told that I've entered an invalid product key. I've retyped it six times. I've had someone else read the key to me, character by character, as I typed it. I've tried it with both upper and lower case.
>
>Oh, and I did all this AFTER uninstalling the beta.
>
>No dice.
>
>HEEEEEELLLLLLLLLLLLP !!!!!
>
>TIA,