Windows XP Service Pack 3 Release Candidate 2 is available to the public. Specific registry settings will allow you to be offered SP3 via Windows Update.

Download the script and run it on a machine currently running Windows XP Service Pack 2. The script sets a registry key on your system. The registry key is required for Windows Update to recognize your machine as a valid target for Windows XP Service Pack 3 RC2.

Versions of Windows XP Service Pack 3 prior to Release Candidate 2 should be removed before attempting to use the registry key. Windows Update will not offer Release Candidate 2 to machines with previous versions of the Windows XP Service Pack 3 beta.

It is recommended that you apply the resulting update package to an activated, genuine copy of Windows XP, in a test environment. As with any pre-release software, it is also recommended that you back up files and settings on your machine before applying this update package.

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