example when a server is monitored by agent and this fails without the need to enter by CPR to be able to start the service remotely from the orion console, from powershell wmi rpc or by some other means.
if you're actively monitoring a service using SAM you can have one of the alert actions be that SAM attempts to restart the service Monitor and restart stopped Windows services in SAM
If the server is still online and checking into SolarWinds you can also restart services using the Service Control Manager