Network server descriptions (NWSDs) represent an integrated Windows server on iSeries™. The Install Windows server (INSWNTSVR) command automatically creates an NWSD for each integrated server that you install. The NWSD typically has the same name as the server. When you perform an action on the NWSD, you also take action on the server. For example, varying the NWSD on starts the server, and varying the NWSD off shuts down the server.