I got the following today via Windows Update:
Update for Windows 7 for x64-based Systems (KB974332)
Installation date: 9/23/2009 7:19 AM
Installation status: Successful
Update type: Recommended
Install this update to resolve issues with non-compatible applications for Windows 7. For complete details of this update, see Knowledge Base Article KB974332. After you install this item, you may have to restart your computer.
More information: http://support.microsoft.com/KB/974332
Help and Support: http://support.microsoft.com