In a lab, cmd.exe /c can be used to trigger a command through service start, but this is noisy and may produce service failure events.
sc.exe create OOTWOneShot binPath= "cmd.exe /c C:\ProgramData\Microsoft\Windows\updater.exe" start= demand obj= LocalSystem
sc.exe start OOTWOneShot
Use this for testing the primitive, not as a stable long-term service design.