http://bugs.winehq.org/show_bug.cgi?id=26835
--- Comment #106 from David davidsboogs@gmail.com 2011-05-09 15:49:30 CDT --- I may be able to check for ADS when I get home (at work now). I have a netbook that has a Windows XP license and dual-boot. It's way under minimum specs for Playing the game, but it might still install and partially launch - enough to load the DLLs. If anyone wants to beat me to the attempt, be sure to check for extra copies of client and server dlls in steamapps/common/portal 2/portal 2/bin (or some such) - I had some that I noticed because they were left when I tried a "remove local game cache".