I use an intermediate solution for this: I never install the software in the C: drive (unless I'm forced to by a dumb installer). I use a common drive letter, say E:, which points to a common folder say /Winsoft, chmoded 774. Installs in there are usually chmoded -R to 774 or 777. I also use different .wine folders for each install which I copy to each user's home within ~/Wineprefixes. I also manually copy desktop launchers around and adjust then the path for each user (this is a family setup). Every time I start a new install, I configure wine to make sure E:->/Winsoft. Furthermore, home folders are shared over a network of three computers using NFS but, for performance reasons, I copy the software installs over the net into the a folder /Winsoft specific to each computer. This works mostly fine for a small setup of 3 computers and 5 users. Wow is always complaining about changes in hardware, but it works.
