There is no driver from NI. You might check with the manufacturer. Otherwise, developing your own driver is not that difficult. There are links at the page above that explain the basics and there is a wizard in LabVIEW to help you get started. Look at some of the existing DMM drivers to get an idea of the structure.
p.s. You actually posted to the board for NI DMM's. The place to post questions about communication to instruments is the Instrument Control board.
