Wine is an open Source implementation of the Windows API on top of X, OpenGL, and Unix/Linux. MediaCoder, as a native Windows application, was able to run under Wine in many cases. Before a native Linux version of the software is developed, the Wine compatibility is improved in build 4180. Now MediaCoder can run more flawlessly on Linux platform. It is no longer necessary to install a Windows version of Firefox under Wine as MediaCoder will look for native Linux Firefox in the Linux system and invoke it to display the XUL-based user interfaces when needed. The test environment is Gentoo Linux / Xorg / XFCE4 / Wine 1.1. There are known issues under Darwine / Mac OS which might be fixed later. If you still encounter problems under Wine, please report.