I get the error
Access to the path \"C:\\WINDOWS\\Microsoft.NET\\Framework\\v1.1.4322\\Temporary ASP.NET Files\\cbnonreg\\fc933fca\\bbf91eea\" is
This sounds like a permissions problem. Make sure that the ASPNET account has full access to the Temporary ASP.NET Files folder. If your problems persist, you could also try running The 'aspnet_regiis -i' command to re-install the framework, which should also reset file permissions.
Failing that, you could try using Process Monitor and filtering to the aspnet_wp.exe process to check what the process is trying to do, and update file permissions accordingly.