Actually, most programs I install require you to uninstall and then reinstall the new program.

Photoshop, Lightwave, Vue6I, Bryce6, heck even Daz Studio all recommend uninstalling the old verson, rather then attempting a new install over an old one.

The thing that makes Poser unique, is the volumes and volumes of content, and EF's solution was the external runtime system. Then you just install your new poser version, and then just link to those old runtimes, without issue at all.

That's worked fine for me from P5xx through P6.xx and beta testing P7.

(Course I have to admit, I still on my OLD networked system still have P5 installed with my original HUGE single runtime.) I didn;t know any better, and all my old work files are buried in that mess. It's much easier to just network the old system in, and if I need something, to troll through that mess, and move the files I need into a new blank runtime for P6.

I know that as soon as I delete that mess, I'll think of a file I NEED from it.. LOL!

Way too many people take way too many things way too seriously.