This might come in handy too for those who are not quite ready for SP2. Which, by the way, I did finally get installed on both my laptop and desktop machines. So far, so good! J
This Microsoft signed executable creates the registry value and sets the associated value that temporarily blocks the delivery Windows XP SP2 to the system via Automatic Updates (AU) or Windows Update (WU). The key used is HKLM\Software\Policies\Microsoft\Windows\WindowsUpdate. The executable creates the key value name ‘DoNotAllowXPSP2’ and sets its value to ‘1’ Please note that the executable has been tested only as a command-line tool and not in conjunction with other systems management tools or remote execution mechanisms.