I have never linked COBOL with C++, but the first thing that you should check is that the members of "struct g" are aligned the same way as COBOL would expect them. Remember that VC++ by default aligns members on an even boundary. If you need to convince yourself, what is the value of "sizeof(g)? I bet it isn't 12!

You need to specify that struct g is aligned on 1 byte boundaries. You can do this by using #pragma pack, or specifiying the byte alignment in the compiler settings.

Regards,

Paul McKenzie