Wow. You are in a tough spot. I could not find anything on our site that mentions Hund. Since the manufacturer is using a dongle, I would be surprised if they would reveal how to communicate with the instrument. If we had that information, we could do the communication in LabVIEW.
If the software program reveals some of its properties and methods using ActiveX, you can have LabVIEW use the software that controls the device. It is a long shot.
Jeremy Braden
National Instruments