If spooler.Status = System.ServiceProcess.ServiceControllerStatus.Running And _ _
  simptcp.Status = System.ServiceProcess.ServiceControllerStatus.Running Then
                spooler.Stop() 'beide laufen
                 MessageBox.Show("Spooler wurde gestoppt")
                If spooler.Status = _
                  System.ServiceProcess.ServiceControllerStatus.Stopped And _ _
                  simptcp.Status = _
                  System.ServiceProcess.ServiceControllerStatus.Running Then
                    simptcp.Stop() 
                End If