Windows 2000 Service Pack 3
This page contains all critical updates, service packs, and other beneficial system updates for Windows 2000. Check this page for ways to keep your computer current and tuned.
Win 2000

Office XP Service Pack 1
Office XP Update: Service Pack 1 (SP-1) provides the latest updates to Office XP. SP-1 contains significant security enhancements and stability and performance improvements. Prior Office XP updates are combined into this package.
Win /XP

Office XP Service Pack 2
Windows XP Service Pack 2 (SP2) provides better protection against viruses, hackers, and worms, and includes Windows Firewall, Pop-up Blocker for Internet Explorer, and the new Windows Security Center.
Win XP

Office XP Service Pack 3
Office XP Service Pack 3 (SP3) provides the latest updates to Microsoft Office XP. SP3 contains significant security enhancements, in addition to stability and performance improvements. This service pack applies to any level of Office XP. It contains all updates included in Office XP Service Pack 1 (SP1) and Office XP Service Pack 2 (SP2), and updates released after SP2.
Win XP

Windows 2000 Service Pack 2 
This page contains all critical updates, service packs, and other beneficial system updates for Windows 2000. Check this page for ways to keep your computer current and tuned.
Win 2000

Windows XP Service Pack 1a
Windows XP Service Pack 1a (SP1a) provides the latest security and reliability updates to the Windows XP family of operating systems, and includes Internet Explorer 6 SP1. Windows XP SP1a is designed to ensure Windows XP platform compatibility with newly released software and hardware, and includes updates that resolve issues discovered by customers or by Microsoft's internal testing team.
To determine whether to install Windows XP SP1a, we recommend reviewing the Windows XP documentation and information.
Win XP

Windows XP Service Pack 2
Windows XP Service Pack 2 (SP2) provides better protection against viruses, hackers, and worms, and includes Windows Firewall, Pop-up Blocker for Internet Explorer, and the new Windows Security Center.
Windows XP

Dial-Up Networking 1.4 Upgrade
Microsoft has released the Dial-Up Networking (DUN) version 1.4 upgrade for the products:
Microsoft Windows 95
Microsoft Windows 95 OEM Service Release, versions 1, 2, 2.1, 2.5
Microsoft Windows 98
Microsoft Windows 98 Second Edition
Win 95/98

Windows Vista Service Pack 1
Windows Vista Service Pack 1 (SP1) is the complete set of Windows Vista updates Microsoft has issued over the past year plus additional enhancements to improve your PC experience. SP1 doesn't add new features or require you to learn anything new—it simply makes your PC more reliable, run more smoothly, and even more enjoyable to use, all at no charge.

Last Updated 21 March 2008
Win Vista