NI488 c console examples, build, but can't connect to GBIB-USB (windows)

The standard C examples compine and link ok, but none so far seem to communicate with GPIB0.

I am using visual C, and the command line in the readme for the build:

    cl /I"%NIEXTCCOMPILERSUPP%\include" FindInstruments.c "%NIEXTCCOMPILERSUPP%\lib32\msvc\ni4882.obj" /MD

no compile errors (I did coment out conio.h, it is not in vs c anymore?)

output after the run:

Error : Unable to open board
ibsta = 0x8100 iberr = 5 (ESAC)
Cleanup: Taking board offline

I can talk to the adapter with all the other tools in the install, and see my instruiments.

Compiled console examples can not find the USB adapter.

Any ideas?

Thanks

Randy