http://bugs.winehq.org/show_bug.cgi?id=3421
------- Additional Comments From jason.robinson79@gmail.com 2006-15-10 10:11 ------- To get MetaTrader 4 working I simply extracted the mfc42.dl_ to the $HOME/.wine/drive_c/windows/system (or system32) directory.
Mount your Windows XP CD (other versions may work). cd to the "i386" directory. "wine expand.exe mfc42.dl_ c:\mfc42.dll", cd to $HOME/.wine/drive_c and then "cp mfc42.dll windows/system" (or system32). That should hopefully get MetaTrader 4 working.
If you don't have a Windows CD then I can't help you any further.