Hey Steve,

>>My current thinking is where the existing VFP server is populating VFP properties for calculations, to swap that out to populate the C++ object properties. Methods in the C++ object will perform the calculations and set final answer properties where the VFP server can extract them and continue processing.

??? Why don't you just write the C++ code as functions, register the functions in the VFP app and make calls to the C++ functions?

Or is this too straight forward for a former VM programmer?

Regards,
Thom