Just wanted to give an update and the new implementation of the Anti-Cross Site Scripting Library V1.5 is done. I re-wrote the entire library to be much more performant than the previous implementations as well as added more encoding methods for various web-application scenarios (Java Script, Visual Basic Script and more). Now what's left is some additional functional, performance and of course security testing <g>.
The official release will be announced here and on the ACE team blog at http://blogs.msdn.com/ace_team/default.aspx. Thanks again for your patience and stay tuned!
Kevin Lam, CISSP
Senior Security Technologist
Microsoft Application Consulting & Engineering (ACE) Team