Adding Unmanaged C++ code classes into Managed C++ Clases

Hello. For the purposes of visualizaton; I have a Windows Forms application right now. I want this Windows Forms application to be able to use some classes I made, however I made these classes in unmanaged C++ code. I thought that if I added #include "stdafx.h" into the .cpp files of my classes that it would solve the problem (I'm a novice) however that gave me an error about the operators for my classes. I was just wondering if there was a way to integrate my unmanaged C++ code into my Windows Forms Application. Thanks a lot.

By the way, I am using Microsoft Visual Studio .NET for my Windows Forms Application
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pcxboyAuthor Commented:
It was actually just a simple include file, but thank you very much
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