Hi All,

This is a very general question, please tell me if this is the wrong place to post this.
I am very new to the world of COM and .NET, as most of the programming i Have done has been in straight C (used to be a hardware engineer and have made some basic Apps in win32).

I am currently reading "Understanding Active X and OLE" by David Chappell and am having a hard time understanding how to implement an external interface to our existing application.

This application is essentially written in legacy code in straight C as it was written almost 20 years ago.

If i write a COM interface, would it be a completely stand alone .dll or executable? or would it be compiled within the existing program?

Ideally I'd like to go with .NET for interfacing. Is this possible in my scenario? Would I have to rewrite the legacy code utilizing .NET architecture?

If it sounds like I don't know what I'm talking about, then you are not mistaken. In the meantime I will continue reading...

Thanks for your time!