The requested page cannot be accessed because the related configuration data for the page is invalid.
Solution: You need to enable the following features to the IIS server. Here is one more step involved in enabling ASP.Net on your Windows Vista
machine. Follow the
procedure in previous article to get to Panel for Windows
Program and enable the appropriate sections under
Internet Information Services > World Wide Web Services
> Application Development Features. If you enable ASP, ASP.Net,
Server Side Includes etc., your settings may look like the