To deactivate Gaze Viewer you need to make a short recording to get to the Help menu in the Screen Capture dialogue.
- Open Gaze Viewer.
- Start a recording. You can stop it right away.
- In the screen capture view, click on Help.
- Select "License Manager..."
- Press on Deactivate
Gaze Viewer is now deactivated and can be activated on any other computer you like.