https://bugs.winehq.org/show_bug.cgi?id=33776
--- Comment #25 from Berillions berillions@gmail.com --- (In reply to Sebastian Lackner from comment #24)
Should be fixed with: http://source.winehq.org/git/wine.git/commit/ d45bda3014cbf21e8fa8e8e429531aed4eeb530e
Unfortunatly, it's not the case. It's still unable to launch the game in a 64bits prefix + WinVista/Win7