Windows Media Player
In 1999, Windows Media Player's versioning broke away from that of Windows itself. Windows Media Player 6.4 came as an out-of-band update for Windows 95, Windows 98 and Windows NT 4.0 that co-existed with Media Player and became a built-in component of Windows 2000, Windows ME and Windows XP with an "mplayer2.exe" stub allowing to use this built-in instead of newer versions. Windows Media Player 7.0 and its successors also came in the same fashion, replacing each other but leaving Media Player and Windows Media Player 6.4 intact. Windows XP is the only operating system to have three different versions of Windows Media Player (v5.1, v6.4 and v8) side by side. All versions branded Windows Media Player (instead of simply Media Player) support DirectShow codecs. Windows Media Player version 7 was a large revamp, with a new user interface, visualizations and increased functionality. Windows Vista, however, dropped older versions of Windows Media Player in favor of v11.