http://bugs.winehq.org/show_bug.cgi?id=18014
--- Comment #26 from Erich Hoover ehoover@mines.edu 2012-09-02 11:29:31 CDT --- (In reply to comment #25)
Using setcap on wineserver doesn't work here:
sudo setcap cap_net_raw+epi /usr/local/bin/wineserver
cap_net_raw is not the appropriate capability to bind to restricted ports, you need to use cap_net_bind_service instead.
...
/usr/local/bin/wineserver: error while loading shared libraries: libwine.so.1: cannot open shared object file: No such file or directory
...
I haven't played with capabilities in a while, but I believe you're supposed to apply them to wine-preloader.