How To Start

For years I have avoid COM. I remember looking at C++ and hoping it would not catch on. Now I am at a point where I need to know about COM so that we can have or new C# code interact with old C++ code. What is most difficult is that we would like to write C# DLLs to access from our C++ application.

In addition to this I will not be personally writing the code that does this. However, I may be called upon to 'help' if somethings goes wrong.