Thank you, fpfrdn3. That's what I really wanted to know. I don't have anything at all against Studio. I know nothing about it, really, so it's a big unknown to me. I have yet to download it and take a good look. Regardless, however, Studio isn't going to work as intended with my ancient copy of Bryce 5. All I'm concerned about is will Studio mess with a new copy of Bryce if I want it to or not. If what you say is true, I shouldn't have anything to worry about.