We have just released an updated version of the Application Compatibility Toolkit.

Significant changes to the tool kit include:

• Update Compatibility Evaluator Now Supports Vista and Windows Server 2008 in addition to Win2K, XP and Server 2003 that were previously supported
• We now support Windows Internet Explorer 8. The Internet Explorer Compatibility Evaluator as well as the Internet Explorer Compatibility Test Tool are capable of identifying issues on websites and web applications when they are run on IE8

Download the toolkit from: http://go.microsoft.com/fwlink/?LinkID=127012

There is also an accompanying Whitepaper on Internet Explorer Application Compatibility which can be downloaded from: http://www.microsoft.com/downloads/details.aspx?FamilyID=12eb7b94-3a05-4a0b-945c-14362a188901&displaylang=en