http://blogs.msdn.com/mikhailarkhipov/archive/2006/12/20/what-is-fixed-in-visual-studio-vwd-express-2005-service-pack-1.aspxThere is a good post in the Visual Web Developer Team blog. There are basically three categories of changes: 1. New functionality added 2. Fixes for issues customers reported at MSDN Product Feedback (aka Microsoft Connect) 3. Crash reports we receiveden-USCommunityServer 2.1 SP1 (Build: 61025.2)