Hot Unload/Reload of a DLL used by an Application

Question

I have an application that loads a DLL to execute a specific part of processing

Example : \"Application.dll\" loading \"Process.dll\" 

Answer 1

While you seem to solve the problem according to your edit here are couple comments:

Watch out for objects from your Process.dll "leaking" into main AppDomain. I.e. something like throwing custom exception defined in Process.dll and caught in main AppDomain will force Process.dll to be loaded into main AppDomain. Check list of loaded assemblies in the main AppDomain after performing operations you are interested in.

Unloading of AppDomain can fail and may take long time.