http://bugs.winehq.org/show_bug.cgi?id=14719
--- Comment #16 from Vitaliy Margolen vitaliy@kievinfo.com 2009-05-31 13:02:17 --- (In reply to comment #15)
The dxupdate won't affect Wine in anyway, unless you have already overridden Wine with native DLLs.
It will for some dlls (such as d3dx9_*) that are set to prefer native over builtin:
BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) { switch(reason) { case DLL_WINE_PREATTACH: return FALSE; /* prefer native version */