http://bugs.winehq.org/show_bug.cgi?id=23578
--- Comment #69 from Lukas Niederbremer webmaster@flippeh.de 2010-07-20 14:36:28 --- Now that you mention it, I switched Windows 98 on for "hl2.exe", but it wasn't the hl2.exe in Team Fortress 2, it was the one of Garry's Mod. Does WINE check the full path or just the executable file name? If so, this might have been the trick to it.