WuInstall

From hs2n Information Technology: WuInstall is a command line tool for windows, which enables you to controll the installation of windows-updates for a certain workstation, by using a command line script instead of the standard window update functionality. It can be used by administrators for updates on many workstations using scripts or for users who do not want to us the automatic windows upates. It searches either on the Microsoft - Update - Server or at the internal WSUS-Sever (depending on system configuration) for currently available updates for the current workstation and can also download and/or installs these updates.