In this section you can find how to check if port 515 (LPR) is listening:

This may solve the problem "The OptimiDoc Service on Local Computer started and then stopped."


Open command prompt. Type: netstat -aon | find "515" .

This will show us if port "515" is used by other service than OptimiDoc Service.

We can see that process ID (PID) 3424 is using port "515"




Now check what process is using port "515" in Services.


OptimiDoc service is working with port "515" so it is necessary the service is connected to this port.



Other case


  • If port "515" is connected to another Service, stop that service and run OptimiDoc Service.