>>If it ends up being C++, i will be puzzled. I couldn't get the DLL to work from VFP, so I wrote VB wrapper. When I asked them for the C declarations for the functions (they only gave VB declarations), the person I was dealing with wasn't able to give them to me (said he new C less than VFP).
>
>Declarations are to be differentiated from definitions. One uses a definition when writing a DLL, and uses declarations (be it VFP or VB) when accessing the DLL. I would not be surprised that a person that knew how to access it using VB declarations wouldn't know C. It all depends on what the DLL author knows.

I understand that...and they are the author of the DLL ;)