There used to be no way to manage your Microsoft System Management Server (SMS) 2003 clients from the command line. Luckily, among the many great technologies that have come along lately to help administrators manage complexity, change, and configuration, Windows PowerShell arrived to solve that problem.
http://www.microsoft.com/technet/technetmag/issues/2007/11/UtilitySpotlight/?loc=en&rss=http://www.microsoft.com/technet/technetmag/issues/2007/11/UtilitySpotlight/?loc=en