Hi, by now, I have programmed interface VIs for communicating with our devices by using the "old" serial I/O and GPIB VIs. Now, I would like to switch to NI VISA, because I need USB, Ethernet and CAN communication functions now, and because I heard that even the serial functions are supposed to work better than the old versions. Is NI-VISA fully included in the LabVIEW FDS/PDS licence? Are there any restrictions using NI-VISA for company-specific device drivers? Can I use VISA 3.1 together with LabVIEW 6.0.2 without any problems? Thanks for your help, best regards, Gabs