If your ProLink dongle becomes unrecognized (light still on but software says "No license found"):
In 2012, many professional applications (CAD/CAM, medical imaging, industrial control, printing, AV editing) used USB dongles (hardware keys) for license enforcement. “Pro Link” typically refers to a proprietary software-hardware handshake system. Losing the dongle often means losing access to critical software. usb dongle backup and recovery 2012 pro link