Elmah reporting unwanted 404 errors

Question

I am using Elmah for logging in a ASP.NET MVC project and I am recieving lots of 404 errors for a path /prx2.php which in turn is passing a hash as a querystring param.

Answer 1

Step1: Configure config sections to include elmah errorFilter section:

Step2: Configure the filter itself in section.

Step3: Include the Elmah.ErrorFilterModule inside your application modules

Modern (IIS7+) version of including http module:

Legacy (older IIS) version of including http module: