http://www.microsoft.com/downloads/d...92dd6da2971#tm

The Microsoft Application Compatibility Toolkit (ACT) version 5.5 contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Windows 7, Windows Vista®, a Windows Update, or a new version of Windows® Internet Explorer® in your environment.

Supported Operating Systems: Windows 2000 Service Pack 4; Windows 7; Windows Server 2003 Service Pack 1; Windows Vista; Windows XP Service Pack 3
Miscellaneous Software Requirements: Microsoft® .NET Framework, version 2.0