Here is a great tool for debugging .NET20 apps.
Do you ever need to get stack traces for your .NET 2.0 applications? Want a quick and easy way to monitor managed processes and threads? Need a way to view a thread's stack trace to investigate an application hang? If so, Managed Stack Explorer is for you.
Managed Stack Explorer is a lightweight tool that allows you to do just this. Simply copy the executable anywhere and start monitoring your stack traces today.