ASP.NET: WebResource.axd call 404 error: how to know which assembly/resource is missing or responsible?

Question

I get a 404 HTTP status error (not found) on a specific WebResource.axd call inside an ASP.NET 3.5 (AJAX) web application. I guess the erro

Answer 1

In my case, the source of the 404 error was that the date and time of the machine running IIS were wrong (from the past).