hello guys....lets suppose I have two projects. Now I want to integrate them using visual studio 200X, how can I do that? thnx

Create a new project then copy (with Windows Explorer) the *.cpp and *.h files from the other two files into it. Then in the Solution Explorer window of VC++ 2010 right click "Source Files" and from the popup menu select Add --> Existing Item.

Or, if I misunderstood what you wanted, you can have both projects in the same solution. In one of the projects select File --> Add --> Existing Project