David,

Did you indeed check that you had the case of the name correct?

It's not that VFP can't access member functions the code I posted specifically shows how easy that is, what isn't easy is memory allocation between two independent processes. Which is why every API call that I can think of requires the caller to allocate the memory and give the callee a pointer to it.

CString isn't a member function it's just a C++ class that makes strings a whole lot easier to use in C++ than they were in C.

>Thanks for the testing, it saves me a lot of frustration. I'll see if I can get more info about DLL and if not I'll build the "wrapper" to access this members.
>It is weird that a program like VFP which has parts of OO does not seem to be able to accesss the OO member functions from the DLL. Maybe is something coming with the next release ?