Hi Marcus,
If it is not a high severe issue you can also just mail this mailinglist here (wine-devel).
Thanks for the info. As it turns out, it's an already-known issue (unixfs allows full host filesystem access through Windows APIs even if there's no equivalent dosdevices link -- reported as http://bugs.winehq.org/show_bug.cgi?id=22450) so I just added a comment onto the bug.
Thanks,
--Andrew Church achurch@achurch.org http://achurch.org/