Question : WebResource.axd not found

I converted an old website from the 1.1 .NET Framework to 3.5. On one of the web servers, WebResource.axd items cannot be found and is handled by the site's custom 404 page.

I've gone into the web site properties (Home Directory - Configuration) and there is an entry for .axd (settings below). Other servers I've put this on have no problems.

Executable: c:\windows\microsoft.net\framework\v2.0.50727\aspnet_isapi.dll
Verbs limited to: GET,HEAD,POST,DEBUG
Script engine: checked
Verify that file exists: unchecked

Answer : WebResource.axd not found

The problem you are experiencing with WebResource.axd is most likely due to a HTTP compression problem on the web server. If you have HTTP compression turned on, then try turning it off and seeing if the problem disappears.

Here is an useful page for troubleshooting WebResource.axd

http://www.rosshawkins.net/archive/2006/10/08/webresource.axd.aspx