Your question is very general, but there are different options based on what you are wanting to do.
First, if you want to use a PCI-GPIB+ or PCMCIA-GPIB+ in a Windows machine to simulate an instrument, as far as responding to commands and queries and generating service requests through the GPIB lines, National Instruments offers NI-Device.
NI Developer Zone "NI-Device: The Other Side of the GPIB Cable"
http://zone.ni.com/devzone/conceptd.nsf/2d17d611efb58b22862567a9006ffe76/193eb9fcc3aa5caf86256ad30063c1dc?OpenDocument
If you are running a simple test or doing some troubleshooting, and you just want to use the GPIB Analyzer to accept bytes of data as a listener on the bus, you can use the Participate in Acceptor Handshake option in the Analyzer applica
tion.
How Does Selecting "Participate in Acceptor Handshake" in the Analyzer Settings Affect the GPIB?
http://zone.ni.com/devzone/conceptd.nsf/webmain/EEA5B86EFD61EB4286256821000A9FCC?opendocument
GPIB Analyzer Manual
http://digital.ni.com/manuals.nsf/websearch/4D19A1CF27669D9F8625665E006359BE?OpenDocument&node=132100_US
Regards,
Geneva L.
GPIB/Serial Product Support Engineer
National Instruments
http://www.ni.com/ask