maybe a little addition to FAQ is to suggest that the program can be installed outside the prefix and shared between the users, requiring only a copy of the bare prefix. Of course, if the program shares data in its installation folder, multiple users will likely have problems. Also note that the original prefix creates links to folders (e.g. My Documents and related, IIRC) of the original user and therefore the copies of the prefixes will have to be adjusted for each user. Finally, not to forget the licensing issues.
