http://bugs.winehq.org/show_bug.cgi?id=30849
--- Comment #52 from Alexandre Julliard julliard@winehq.org 2012-06-07 09:13:32 CDT --- I'd expect it would also get 4Gb of address space on 64-bit Windows, so there must be something else going on here. Are you using a 32-bit or 64-bit wine prefix?