I ported MFC 2.5 to target NT 3.5 with relatively little difficulty. Both the
Windows NT SDK beta and Visual C ++ 1.1 have a porting tool that may be of help
to you. The ODBC code will recompile for 32 bits with only minor changes
(there were a few casts [as I remember it. Also, you can use the the
__declspec(thread) attribute to get a thread local exception context, and
windows message hook. /exit