Drivers need to be installed before the JS500 (Serial) and JS501 (USB JIB) will communicate with the computer. Driver installation depends on which JIB hardware you own. For more help on which JIB you have, click here: Which JIB model do I have? JS501:

If you use a USB JIB (JS501) download the latest drivers from here: VMSpc USB driver installation Run the app "Install Drivers.exe" then reboot. Use the latest version (from the website) for the easiest, pain-free, installation. JS500:

If you have a Serial JIB (JS500) you only need drivers if you are using a USB to serial adapter to plug into your computer's USB port. Click here for driver installation instructions for your USB to serial adapter: VMSpc Serial to USB adapter driver installation