After the fall of Tiny Firewall, the need to find a replacement arose. Since the current number of software firewalls that support Windows 64 is a grand total of 1 since Tiny Firewall no longer works with the latest security patches, and no apparent life signs from its support or developers, Ghostwall was it. Unfortunately i've run into several problems as Ghostwall won't run on a stock Windows XP 64bit. The first issue are missing DLL's. I had to hunt down and install the following DLL's from DLL sites: psapi.dll avifil32.dll winmm.dll Having installed those DLL's the following error now shows when trying to launch ghostwall: The procedure entry point SMapLS could not be located in the dynamic link library KERNEL32.dll Is the any solution to this problem? It would be very nice to be able to run a software firewall on Windows XP 64 bit Would of course also be nice if Ghostwall included the non standard libraries it appears to depend on when installing on Windows XP 64 bit.