Gilson:
If you install Agilent VISA and not NI-VISA, then CVI will just use Agilent VISA instead. VISA is an open standard and all VISA implementations support the same API. CVI will not know the difference, nor will it care. If you use Agilent VISA, note that VISAIC will not be on your system (since that is part of NI-VISA) and if MAX is on the system, then Agilent VISA resources will not appear at all. But that is OK and you can still use it from CVI.
If you install NI-VISA and then install Agilent IO Libraries (drivers but not VISA), then you will need to go into MAX, go into the Tools menu and look in NI-VISA Options, and enable the NiVisaTulip Passport. Then you can use VISAIC, as someone previously suggested. You will also (of course) be able to
use the Agilent resources from within CVI.
In either case, configuration of your Agilent GPIB controller must be done from the Agilent configuration utility.
Dan Mondrik
Senior Software Engineer, NI-VISA
National Instruments