XMPlay is a universal, free and portable music player developed by Un4seen Developments in 1998. It comes with tiny file size (less than 500 KB), compact and clear UI, powerful extensibility (skins, plugins, visuals and other add-ons), support to all popular audio formats, low memory usage, programmable music playback support, drag-and-drop operation support, complete keyboard shortcuts, and more. In short, it can compete with any premium music players, including foobar 2000 and Winamp.