How to Play MP4 Files on Windows Media Player XP, Vista and Windows 7. Playing MP4 Files in XPWindows XPs Windows Media Player 9, 1. MP4 file format. It can only play Windows media audio and video files extensions with aiff, asf, au, avi, midi, mp. XP users will need a MP4 codec for Windows Media Player to view or listen to the MP4 file format. I have tried using the codec provided by Microsoft, but theres no luck in playing MP4 files after a successful installation on a XP computer. Fortunately, there is K Lite Codec Pack, a third party code package that you can install for XP so that you can play MP4 files without downloading another media player program. Installing K Lite codec pack is quite simple. Windows Multimedia System In Win16 and Win32, Microsoft created a partially unified system for handling multimedia. This system consists of the high level Media. Information The KLite Codec Pack is a free collection of codecs and related tools. Autodesk 3Ds Max 2009 Free Download Full Version 64 Bit there. Codec is short for Compressordecompressor. Codecs are needed for encoding and. Simply download any version of the codec pack from a free codecs website and save it on your desktop. Execute the downloaded file, e. K LiteCodecPack7. Basic. exe, to install. Leben Marionetten 1980 here.