Using Your Own .NET Designer Objects in Unmanaged Code – Designer Object Bridge
Many things can often be implemented significantly easier and faster in managed code than in unmanaged code, such as with Delphi or C++. Sometimes, there already exist ready-made .NET modules which contain the desired requirements and which need to be used in your own unmanaged application. But the question then is: How can a .NET module be made accessible to an unmanaged system?