Hi Bill,

I am glat that you have figure your question our yourselves.
Yes, as your said if we write pure managed code in Managed C++, it will do
the same job with C#.(They are all based on CLR).

Also Managed C++ supported mixed mode code, that is to say, we can include
managed code together with unmanaged code( which is all in MCPP).
i.e. we call CoMarshalInterface in Unmanaged portion in the managed C++
Dll, while call the Unmanaged  portion from Managed portion in the MCPP Dll.

e.g. call the api in managed class directly.
#include <windows.h>
#using <mscorlib.dll>  //complied with /clr

__gc class MyTestWrap
{
public:
    void ShowMessageBox()
    {
        MessageBox(NULL,"Hello","World",MB_OK);
    }
    System::String* GetModuleName()
    {
        HMODULE hInst = GetModuleHandle(NULL);
        char hName[MAX_PATH];
        DWORD sz=MAX_PATH;
        if(GetModuleFileName(hInst,hName,sz)==0)
            return new System::String("");
        else
            return new System::String(hName);
    }
};
int _tmain(int argc, _TCHAR* argv[])
{
    MyTestWrap* pObject = new MyTestWrap();
    pObject->ShowMessageBox();
    System::Console::WriteLine(pObject->GetModuleName());
    return 0;
}

Also your approach is a solution too.

Best regards,

Peter Huang
Microsoft Online Partner Support