USB RS-485 Driver is included in the Run Time engine?

[Haizhen]

When I use application builder to make a stand alone program with a Communication port for computer connecting a  USB-RS485 interface. The problem is that I need to install NI-VISA driver to make the interface to work. This is a big problem for our customer when the program is distributed to them. Is the NI-VISA is free licence? How to solve the problem?

[RavensFan]

Yes NI-VISA is a free license.  You can include it in your application's installer by adding it under additional installers.

NI-VISA is a separate driver and is not a part of the LabVIEW run-time because it is used for several software products besides LabVIEW.