wine users - Oct 2009 - Running ".wine" folder from USB drive.

Hello Everybody,

I'm trying to run some applications fully contained on their own
"wineprefix" folder from an external USB Drive. (I'm trying to run
some games on a Acer eeePC with only 16GB of SSD storage...some games
couldn't be fully contained inside of it)

Being a computer without a CD/DVD drive I've first installed the software on
a different machine and then copied the relative "wineprefix" folders
inside an NTFS formatted USB HD.

Unfortunately, Ubuntu 9.04 mounts USB Storage units as "root" user
/group with fully Read/Write Permission to everybody. Due to this situation, 
wine refuses to run from such folder with the error "wine:
NAME_OF_THE_FOLDER is not owned by you". )

I want to avoid messing with /etc/fstab , as doing so usually breaks the
UDEV/HAL automounting feature of ubuntu for CD/DVDRom and USB devices. Custom
UDEV/HAL rules could be a solution, but of course this would be something not
relevant to wine itself.

Does anybody know a way to run wine with a wineprefix located where the user has
fully read/write permission but he's not the actual owner?

ok, found a very, VERY ugly  fix (closer to a workaround):

After copying only the system.reg, userdef.reg and user.reg on a folder owned by
the user, just point a symlink for the "drive_c" folder from the USB
drive to the new created "wineprefix" folder makes the error
disappear.