Windows Update

Hello to everyone

I would like to know if there is a program that can scan Win Xp and list the missing updates, then download it in a folder. so whenever i do a fresh install of xp i dont have to redownload those updates again. The program should be able to download only the missing windows updates. i know there is a program like wsus offline Updater, but that program downloads all updates of win xp and not the missing one. so please guys help me. or if there is away of accomplishing it.



Thanking all in Advance