http://blogs.msdn.com/brandonturner/archive/2008/03/10/pathinfo-url-rewriting-for-the-simple.aspxRequest.PathInfo gives you what is past the file name but before '?' which starts the query string.  So instead of doing www.foo.com/bar.aspx?var1=value you could do www.foo.com/bar.aspx/var1/value .  This helps a lot with SEO because searchen-USCommunityServer 2.1 SP1 (Build: 61025.2)