PrintUsage Pro print service runs as a system service, so the monitoring service runs normally even if there is no user logon. After user logon, there will be a printer icon in the system tray. This icon is for the configuration tool of print monitoring service but not for the monitoring function. Even if user exits the program, the monitoring service will not stop.

For those printers shared on individual workstations, we should prevent user from stopping print monitor service or uninstalling PrintUsage to hide from the monitoring. SO only Administrators or Power Users have the priviilege to stop the service or uninstall PrintUsage.