Yes,DefenseWall will only work on 32bits....The reason : PatchGuard and lack of official kernel-level interface functionality in the 64bits OS.
So far only SBIE manage to find a away around the PatchGuard and all the developers are waiting to see how Microsoft will react.
DefenseWall is a great piece of software.No slowdowns and 99,99% security guaranteed.. .
Hopefully in the near future SoftSphere Technologies will manage to release a 64bit version.
Time, effort and probably money are required to make a 64bit compatible version. Hopefully the author will find the necessary resources for it. The end-result might not provide the same level of security as the 32bit version. Until then, for 32bit users, DefenseWall Personal Firewall can be a valuable addition to their security.
I don't know what the beta version of Sanboxie actually does but if this is the start of a cat and mouse game (Microsoft releases a patch, Sandboxie finds another way around PatchGuard and so on) it might be better to leave PatchGuard alone.
Because of that I was looking for a laptop for yourself optimum protection, and least aggravating my machine. And so I came to the DWPF, which won in the contest. The program is virtually maintenance free for the excellent support and develop this. Iyla help in everything and is available virtually 24 hours a day. Do not leave unsolved problems! With clear conscience I can recommend DefenseWall anyone. All participants in the contest good luck because we have this program to protect your computer