Dcom98 contains three dlls from Windows 98: ole32, oleaut32, and rpcrt4. The easiest way to install it is through winetricks: Code: wget http://www.kegel.com/wine/winetricks sh winetricks dcom98 The winetricks script will set the override globally, and if you have any other programs installed in that wineprefix it may affect them. If that happens, you can fix it through winecfg.