I have several Windows 7 Ultimate license keys that I downloaded a while ago from when I had an MSDN subscription. These are legitimate keys and have not been used elsewhere by me.
Today I went to download from Download Windows 7 Disc Images (ISO Files). This page wanted to know my license key before it would initiate a download, and when I put one of my keys the site responded with:
The product key you provided is for a product not currently supported by this site or may be invalid. Please try again or visit the Microsoft Support Contact Us page for assistance.
Is this a genuine problem with my license key, or a problem with a license key that is associated with the Ultimate version?
I do have (pre SP1) ISO files of the same vintage as the keys I have, but I wanted to download something more moderne with the latests updates already baked in.
After a bit of searching around I did find in the Windows Download FAQ
My Windows 7 product key won't verify. What's the problem?
The most common issue is the use of a product key for a product not currently supported by the site such as an Upgrade key, an MSDN key, product keys for pre-installed media or an Enterprise edition key. For access to MSDN products or Enterprise edition visit the MSDN Portal or the Volume Licensing Service Center. Upgrades and pre-installed media are not currently supported by the tools on the site. If you believe you have a valid product key and are still receiving an error, please contact Support.
Thus the problem was the type of key I had, so the best solution for me right now is magicandre's answer