Well the thing is, mIRC is already "skinnable." Severl themes already exist allowing you to change all the colors mIRC uses. You can change the background of all windows, you can change the color of text in the nicklist, you can change the icons on the toolbar, dlls exist that allow you to change the appearance of the switchbar, menubar, add statusbar, etc, etc. Pretty much, everything you could want added in a skin engine is already available in some other form.
