Apparently there is a registry hack which is a “work around” that allows you to continued to get XP security updates. Well not actually, instead it allows you to pull in Windows Server 2003 updates – which has similarities with Windows XP in its code. So in theory a portion of the updates should work on your Windows XP machine. However, in there are also differences in the two operating systems, so not all the updates will work and could actually damage your Windows XP operating system.
My advice is not to use it. Disconnect you Windows XP machine from the internet and any network to which you are connected. You may not be able to surf the web or get email, but you have a machine you can use and your data is safe. When you have the money, either upgrade your XP machine or buy yourself a new computer.
For more information on the hack, you may want to visit Maximum PC’s article at: