Hello,
Working with one (or more) NI-CAN card(s) on a Windows 2000 System may result in a faulty detection of the card. The card will be properly shown in NI-CAN Diagnostic, but will fail with an error message (0xBFF62023) as a result of the faulty detection of a board. This is fixed in NI-CAN version 1.5.1. Uninstall version 1.5 and install version 1.5.1 (or higher). The new version of the driver is a free download (see the related link below).
http://digital.ni.com/softlib.nsf/display?ReadForm&lookup=NI-CAN&view=current&node=132060_US
Good Luck!
Kim L.
Applications Engineeer
National Instruments