Foobar2000 is an advanced audio player for the Windows platform. Some of the basic features include Replay Gain support, a low-memory footprint, and native support for several popular audio formats. Features include open-component architecture, allowing third-party developers to extend functionality of the player; built-in support for WAV, AIFF, VOC, AU, SND, Ogg Vorbis, MPC, MP2, MP3, MPEG-4 AAC, FLAC, OggFLAC, Monkey's Audio, WavPack, Speex, CDDA, TFMX, and SPC; support through third-party plug-ins; extraction on-the-fly from RAR; 7-Zip and ZIP archives; full Unicode support on Windows NT; efficient handling of large playlists; a highly customizable playlist display; and customizable keyboard shortcuts. Most standard components are open-sourced under the BSD license.