Well, it's all a moot point anyway. I tried to install the free Daz 4 on my computer running Windows 7 Home Premium 64-bit and it wouldn't install. Then I tried to run the uninstaller and it told me that it wasn't a proper Win32 program. So, I removed what I could using the Windows add/remove software tool and removed the rest old school (seek and destroy.) After a reboot, a second attempt ended with the same result, leading me to believe that the free Daz 4 software just isn't Windows 64-bit compatible (that would have been nice to know ahead of time.
)
Bryce 7.1, on the other hand, had no problems installing on Windows 7 64-bit.