Are you linking against C:\VXIpnp\Win95\lib\bc\visa32.lib? If not, do so and that should solve your problems.
If you are trying to link with that library, and it's not working, perhaps you'll need to create your own import library based on visa32.dll. We haven't changed the Borland import library in awhile, and I don't know if it's still compatible with the latest versions of the Borland products.
Dan Mondrik
National Instruments