How to debug my own DLL file that is imported to other application as a plugin?

Question

We created a C# project in Visual Studio, That results a DLL file. If we import that DLL file to 3rd party application it acts as a plugin. Everything is fine. But there is a bug in my DLL file which I can find it by placing a debug point. But I don't know how can I do that for DLL which is imported to 3rd party application.

Answer 1

It might or might not work, but you can attach to a running process: