Start and stop the Perforce service
If you install P4 Server as a service under Windows, the service starts whenever the machine boots.
Stopping the service with C:\> svcinst stop -n "Perforce"
To stop the service, the P4 Server superuser issues the command:
C:\> svcinst stop -n "Perforce"
To avoid the risk of problems, do not attempt to stop the service in any other way.
If you are having problems stopping your P4 Server, contact Perforce Support.