The Vfp setup is really smart, IMO, same with Vfp9 Beta.
All IDE files and Registry stuff are located separately, except %programfiles%\Shared Files\System\Ole DB\vfpoledb.dll, which will be beta after Vfp9 setup. (I believe system32\msvcr70.dll will be untouched).

Officially, there is a warning not to run beta stuff on production machines of course.
In practice, Vfp9 Beta coexists fine for me.
Typical issues may be
never share any foxuser.* files, e.g. when opening certain projects in both versions. Same for most files in Home(7).


hth
-Stefan

>Hi all:
>
>I have VFP8 and VFP6 on the my development machine (of course, different directories), and they co-existed well. Now will VFP9 beta also co-exist with VFP6 and VFP8 on the same machine? From all the Readmes it says VFP9 can exist on the same machine as VFP8, with some tweaks. However, I'd like to hear what my peers in UT have to say about this. We just got VFP9 and plan to port our app to it at a much later date - early next year probably. I'd like to get my hands on this VFP beta as early as now but I do not want to go on install VFP9 and crash my VFP8 and VFP6 in the middle of a big project.
>
>Any information will be very helpful.
>
>Thank you.