Application crash In this scenario we want to capture a memory dump at the exact moment the application has crashed. Start the “Debug Diag Collection” tool and select “Crash”
Select a specific application pool, i.e the application pool that your site is running.
Select the application pool of your website
Leave the defaults selected. In DebugDiag 2.0 this will record the call stack for first chance exceptions and a full memory dump for second chance exceptions, i.