http://www.ghostsecurity.com/index.php?page=xp64patching Here is a page I wrote about x64 patching protection ( commonly refered to as PatchGuard ) . Whilst most people might think there is nothing special about supporting x64, I can tell you it is a big deal. Reading the above webpage will indicate why. You can also download the x64 version of Ghost Security Suite from that page. I will be supporting Windows 2000, XP, 2003 and XP64 from now on. This x64 build, is exactly the same as the 32bit build, but it has some newer features which will be released in the 32bit build over the coming days.