ASP.NET/IIS: 404 for all file types

Question

I set up 404 handler page in web.config, but it works ONLY when extension of URL is .aspx (or other which is handled by ASP.NET). I know I can setup static HTML page in webs

Answer 1

In the IIS application configuration, you can set a wildcard mapping (".*") to C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_isapi.dll