http://bugs.winehq.org/show_bug.cgi?id=26835
--- Comment #67 from Timothy Pearson kb9vqf@pearsoncomputing.net 2011-04-20 02:21:14 CDT --- Whatever checks are bypassed with the modified DLLs are not the real problem, as I can get to the same point with the DLLs from a Windows XP installation. Unfortunately there is still a crash that occurs before the menu screen in both cases, with the only apparent effect of the DLL replacement having been to crash the application sooner.
I think Valve will need to address this; there is only so much that we can do / have access to.