ServicesControl.Stop Method

public static ServiceStatus Stop(string serviceName)
 {
     try
     {
         ServiceController service = new ServiceController(serviceName);
         if (service.Status != ServiceControllerStatus.Stopped)
         {
             service.Stop();
             service.WaitForStatus(ServiceControllerStatus.Stopped,
                 TimeSpan.FromSeconds(6));
             return ServiceStatus.STOPPED;
         }
         else
             return ServiceStatus.ALREADY_STOPPED;
     }
     catch { return ServiceStatus.UNKNOWN_ERROR; }
 }