Microsoft is releasing a monthly Security Release Iso image which contains the security releases of that month packed on one Iso image. The benefit of this approach is not really obvious for home computers running just one version of an operating system by Microsoft but for networks with lots of installed operating systems.
The size of the Iso image is usually around 450 Megabytes and it contains sometimes only two or three patches in total. That means, end users are better off using Windows Updates to get their updates while administrators should definitely evaluate the possibility of using the Security Release Iso Images.
This DVD5 ISO image is intended for administrators that need to download multiple individual language versions of each security update and that do not use an automated solution such as Windows Server Update Services (WSUS). You can use this ISO image to download multiple updates in all languages at the same time.
November 2007 Security Releases ISO Image
October 2007 Security Releases ISO Image
September 2007 Security Releases ISO Image
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But I find Windows Server Update Services (WSUS)is a lot better as i can update it when ever there is an update and not have to wait.