http://bugs.winehq.org/show_bug.cgi?id=25887
--- Comment #4 from Peter Quiring pquiring@gmail.com 2011-01-26 12:12:28 CST --- Ya, or instead of using Z: you could change the root to be X: Or create a symlink ~/.wine/drive_c/root -> / so that c:\root is used.
Not a big deal, I hardly ever run dos apps. Just move them into drive_c.