The MOVEit Central service normally starts automatically when the computer boots. However the service and/or the underlying service application may also be started manually through the Windows command-line console or the Windows Service control panel if the MOVEit Central service is not currently running. (The "Service - Running As..." documentation has more information about this.)
The MOVEit Central service can also be stopped through the Windows command-line console or the Windows Service control panel, but a cleaner way to stop the service (and avoid killing running tasks) is to use MOVEit Central Admin's "Shut Down Service" command.