The Windows Application Compatibility Update is a software update that improves the compatibility experience in the following Microsoft Windows operating systems:
- Windows Vista
- Windows Server 2008
- Windows 7
- Windows Server 2008 R2
Microsoft regularly releases application compatibility updates for these Windows operating systems. This update package is available through Dynamic Update during the installation of these Windows operating systems.
Note: If the computer is connected to the Internet when you upgrade the operating system, Dynamic Update prompts you to download critical content. You have the option to skip Dynamic Update during setup.