You get this error when first trying to run your application
HTTP Error 404.17 - Not Found
The requested content appears to be script and will not be served by the static file handler.
1. This can also be caused when Microsoft .NET Framework is not registered properly with Microsoft IIS.
2. The request matched a wildcard mime map. The request is mapped to the static file handler. If there were different pre-conditions, the request will map to a different handler.
1. Reregister ASP.NET with IIS by selecting Build, Re-register ASP.NET with IIS.
2. If you want to serve this content as a static file, add an explicit MIME map.
http://support.microsoft.com/kb/943891
.NET Framework is Not Properly Registered
Application Runs But No Data is Displayed