If you're talking about an HP/Agilant, there are vi's included with the driver:
http://zone.ni.com/idnet97.nsf/9b2b33e1993d877786256436006ec498/e4c553c139f78062862568ab005fba3c?OpenDocument
See also:
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=50650000000800000017860000&UCATEGORY_0=_49_%24_6_&UCATEGORY_S=0&USEARCHCONTEXT_QUESTION_0=34970A&USEARCHCONTEXT_QUESTION_S=0
Or just search the discussion forums for "34970A"...
2006 Ultimate LabVIEW G-eek.