Yes, that was it. It never occurred to me there would be any reason not to use 32-bit on any system regardless. Maybe speed but not functionality. I'd suggest when the 32-bit install is run on a 64-bit system a note: "This will work and find everything except where Windows redirects 32-bit software to see a different folder, like Program Files vs Program Files (x86) and System32 vs WOW64, etc."