PATCHifier is a very customizable patch organizer/installer for the Windows platform.
With very little administration you have PATCHifier running and installing patches on your Windows clients.
Or why not use PATCHifier for batch application installations.
It runs on 98, ME, NT, 2K, XP, 2003 & Vista.
On my homepage you will also find online docs and screenshots for PATCHifier