You can stop reading here if what I wrote is satisfactory for you. If you still have some doubts and would like to dig deeper, keep on reading Smile | :) – I will show you how to look at the ASP.NET internals with the SOS debugger extension. Basically, you start with attaching to the w3wp.exe process that your application is running in. Then load sos (replace clr with mscorwks if it’s .NET 2.0):