I had installed gdiplus from winetricks but I see now that there was another one in my system32 directory. I moved that one leaving just the gdiplus from winetricks, and ran: Code: $ winetricks gdiplus err:ole:create_server class {a1f4e726-8cf1-11d1-bf92-0060081ed811} not registered err:ole:CoGetClassObject no class object {a1f4e726-8cf1-11d1-bf92-0060081ed811} could be created for context 0x4 Executing wine /home/xxxx/.winetrickscache/ppviewer.exe fixme:advapi:LookupAccountNameW (null) L"andrew" (nil) 0x33f80c (nil) 0x33f810 0x33f804 - stub fixme:advapi:LookupAccountNameW (null) L"andrew" 0x12e0b0 0x33f80c 0x1362b0 0x33f810 0x33f804 - stub fixme:msi:ACTION_HandleStandardAction unhandled standard action L"SetODBCFolders" fixme:msi:msi_unimplemented_action_stub RemoveShortcuts -> 1 ignored L"Shortcut" table values fixme:msi:ITERATE_CreateShortcuts poorly handled shortcut format, advertised shortcut fixme:shell:DllCanUnloadNow stub Executing cp /home/xxxx/.wine/dosdevices/c:/Program Files/Microsoft Office/PowerPoint Viewer/GDIPLUS.DLL /home/xxxx/.wine/drive_c/windows/system32/ Using native override for following DLLs: gdiplus Executing wine regedit /homexxxx/.wine/drive_c/winetrickstmp/override-dll.reg Install of gdiplus done fixme:shell:DllCanUnloadNow stub winetricks done. It almost seems like it has trouble registering the dll. Anyway I then ran Photomatix overriding gdiplus again and it still failed with the AccessViolationException. Yes, this is the link to the program: http://www.hdrsoft.com/download/win.html I am using the trial