This is from the Installation Guide (section 7) found in the Help menu of any QubeGUI or the Qube! online documentation here:
http://pipelinefx.com/docs/Uninstalling Qube!Perform the following actions for the machines that Qube is installed on:
1. Stop the Supervisor service (if the Supervisor)
Linux: # /sbin/service supervisor stop
OSX: SystemStarter stop supervisor
Win: (dialog): Services Window->Supervisor->stop
Win (cmdline): net stop qubesupervisor
2. Stop the Worker service (if running as a Worker)
Linux: # /sbin/service worker stop
OSX: SystemStarter stop worker
Win: (dialog): Services Window->Worker->stop
Win (cmdline): net stop qubeworker
3. Additional cleanup on OSX
1. From the QubeGUI, click on the menu items