I was just reading the other day, there is a way for you to call MSFT and explain you lost the number and they will give it to you.

http://social.msdn.microsoft.com/Forums/en-US/0791cb7e-b7d5-483a-9caf-93906f97ef29/my-msdn-expired-last-year-is-there-any-way-you-can-retrieve-product-keys-for-me-from-that-old

I don't know the procedure, but evidently it can be done.

>>I am in need of a copy of Visual FoxPro 9 Professional. The upgrade would be fine. Yesterday I saw a copy for $309.97 from evaluesoftware.com, in Park City, Utah. Today I do not see it, but they have an AE version and an OLP version. I have no concept of what these endings mean.
>>
>>Does anyone know of a legitimate source for purchasing Visual FoxPro 9? Any leads would be appreciated.
>
>Well, rats. I just found a copy of the VFP 9 CD (DVD?) I know it requires a serial number and password to install and made the unpleasant discovery that my MSDN subscription has expired. There are no Microsoft products I want to install now so I am not going to re-up at the moment. Sorry.
>
>Mike