I searched and found many results and tried everything, but could not understand!
Created an application in VS 2008 and published to an existing iis6 server and works fine. We just got the new Windows 2008 RC2 server with iis7.5, and when I publish there I get this error (on the local machine)

I installed AJAX Libs and the toolkit also tried adding things to web.config.
I can provide any necessary information. Thank!
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