http://bugs.winehq.org/show_bug.cgi?id=6955
--- Comment #122 from Skotlex skotlex@mailforce.net 2013-05-30 09:26:23 CDT --- Uhm, I don't think this bug DEPENDS on bug 11910, that bug affects specifically NOLF2 demo, but this is a more generic bug which deals with many more programs/games.
Unless you mean to state that the absence of function "msvcirt.dll.??0istrstream@@QAE@PADH@Z" is required for vertex blending (which I doubt is the case, as the patches in this bug report have enabled others to play for a while now).