This email was created by [your name] who thought you would be interested in the following Article:
"Using P/Invoke in a managed C++ application"
This article demonstrates interoperability between .NET managed code and old unmanaged code. It uses the P/Invoke mechanism to call unmanaged DLL entry points.
CodeProject also contains hundreds of articles, free source code samples and applications to help in your day to day programming. Why not give it a try!