XP SP3 includes all security, performance, and stability upgrade programs/patches since the release of Windows XP, but does not include IE7. The main new features of XP SP3 include: black hole routing detection, Network Access Protection (NAP), more detailed security options interface, enhanced administrator security and service policy entries, kernel-mode encryption module.
Some screenshots of the Windows XP SP3 RTM:
Download Windows XP SP3 RTM:
Windows XP SP3 RTM Simplified Chinese Edition [Torrent]
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Windows XP SP3 RTM English Edition