Saw earlier today that someone went through and commented the whole jquery.1.2.3 file so it is nice and friendly with the latest version of studio
http://lancefisher.net/blog/archive/2008/02/12/intellisense-for-jquery-in-visual-studio-2008.aspx To get jQuery and intellisense working properly, there was a hotfix released the other day that makes it possible: http://blogs.msdn.com/webdevtools/archive/2008/02/08/jscript-intellisense-working-with-jquery.aspx and more info with great comments and feedback: http://www.west-wind.com/weblog/posts/251271.aspx