http://bugs.winehq.org/show_bug.cgi?id=28921
--- Comment #2 from Luke Bratch l_bratch@yahoo.co.uk 2011-10-31 16:18:29 CDT --- I did the following to get past the installer:
1) Set the global Windows version to Windows 7 2) Created all failed CreateFileW attempts of actual files (found using WINEDEBUG=+file) 3) Set reg.exe and OriginClientService.exe to run in Windows XP mode in winecfg
At this point, the Admin error went away, and the status was "Installing" for several minutes, then...
4) Terminated EAProxyInstaller.exe after a few minutes of the "Installing" status.
The game then appeared to be installed, but crashes on startup.
Step 2) might have been utter nonsense, please don't shoot me. :)