Hi Folks,
I have found the problem (after two days of learning C, mingw and
dev-c++) and fixed it.
I've recompiled it for windows and I'll do Linux tomorrow.
The error was in the conversion of the guid to the native 128 bit version.
All the create functions are correct, as is the expand function.

I'll post tomorrow when I've got the builds tested and available.

Thanks.
Ian