DispHelper port for PellesC

[frankie]

DispHelper is a small library that approaches the COM from plain C using the methods from the Dispatch interface. Practically it uses the same techniques of Visual-BASIC.
The variable number of arguments used in the Invoke method are implemented in C using the variadic functions.
Explanations and (small) doc can be found here.

[sergey]

A good tool received a second life.
Bravo!
Very useful comments in the source code.
the original author was not verbose.
Thank you!

It would be good to place on www.codeproject.com

[frankie]

You're welcome Sergey. 
Anyway the comments come from the original code (last version).