風吹くままに

Method of forcibly downloading and installing Windows XP SP3 RC1 from Microsoft Update.

1/ Download this file called "WindowsXPSP3Hack.cmd(ttp://dailyapps.net/wp-content/uploads/2007/11/windowsxpsp3hack.cmd)." Once you have downloaded the file, login as administrator and run the file by double clicking it. Wait for the Confirmation Message on screen.
2/ The Above file adds a few entries to the Windows Registry that makes Microsoft think that you are a part of the Private beta program.
3/ Check for new updates on Windows Update. You should now see Windows XP SP3 listed in the available updates.
4/ Download and install it. Reboot whenever necessary.

For more details:
http://dailyapps.net/2007/11/hack-attack-get-windows-xp-sp3-through-windows-update/