I was looking for something to block writes to the MBR and started looking up DefenseWall. I then saw this on the defenseWall website http://www.softsphere.com/ For Windows 2000/XP/2003/Vista/7 32-bit. Shareware, 30-days full-functional trial. Personal Firewall edition of DefenseWall=HIPS one + bi-directional network connections control. Current version is 3.19. NO Windows 7 64-bit support. This is probably not news to many of you, but it was to me. With Windows definitely headed in the direction of 64-bit, is it the end of the road for DefenseWall. I ask because I suspect that in order to do what DefenseWall does, it probably patches the dispatch table in the kernel and that does not work on 64-bit due to patchguard. What are DefenseWall's plans for 64-bit ?