Hi All,

We have an existing VFP application and we are writing a new C# web front end to compliment it. To complicate matters our company owns a C++ library containing all of the calculations we use in our VFP application and we have be requested to reuse the C++ rather than convert the VFP code to C#. We were able to write a managed DLL wrapper for the C++ code (LIB file) which allows us to utilize it in C#. As victims of our own success we have now been tasked with turning our C# DLL into a COM library and replacing out our VFP code so that both applications have the same code base.

I have made the C# DLL COM visible, generated the TBL file and run REGASM. When I issue the CREATEOBJECT() in VFP I receive an error that the specifed file cannot be found. I then added the COM DLL to the GAC and still receive the error message.

I suspect that the issue is the related files. In the C# environment I can drop the C# DLL, C++ DLL and original C++ lib files all into the BIN folder and it is happy, however in the VFP environment I suspect that the issue is that it is finding the C# DLL and then cannot locate the reference libraries. As they stand these files (in particular the LIB) cannot be registered and so I may be at an impass, but I wanted to see if anyone else had resolved this issue previously or had any ideas.

Thanks in advance for your assistance,
Ian Plunkett
Senior Developer