, lensman wrote

When you compile a C#/ VB.NET application you get a .DLL/.EXE which can be either 32 bit, 64 bit, or either.

 

That is interesting.  The 32 bit DLL that I had trouble with in C++ was useable from C# thru P/Invoke.  Another C++ annoyance is the .LIB file requirement. To link in C++ you need the .LIB file. And to run, the .DLL.  With C# P/Invoke, only the .DLL is necessary.