XviD Media Codec 1.1.3
XviD Media Codec includes the open-source MPEG4 codec, 4cc xvid codec which comes from the same open-source project that was the basis for DivX 4.x/5.x. The XviD codec will enable you to watch XviD movies. There’s no xvid codec for wmp included, but with this codec installed on your machine, you can view XviD Movies with a media player, such as WMP or Win Amp.
K-Lite Codec Pack 4.0.0
K-Lite Codec Pack is a collection of codecs, DirectShow filters and tools. Codecs and DirectShow filters are needed for encoding and decoding (playing) audio and video formats. The K-Lite Codec Pack is designed as a user-friendly solution for playing all your movie files. With the K-Lite Codec Pack you should be able to play all the popular audio and video formats and even some rare formats.
CCCP-Combined Community Codec Pack 1.0
Almost all you need to play .mkv (matroska video) and .mka (matroska audio) files under DirectShow players, such as Windows Media player, MPC, Zoom player and TCMP (see above). To see an updated list of what these packs contain, look at the ReadMe on the site.
Storm Codec 3 08.02.01
Storm Codec is an adorn & enhance of Windows Media Player, Storm Codec provide a solution to most popular media files, streams and VCD/DVD, it can play Real Media, QuickTime, MPEG-2, MPEG-4 (DivX/XviD/3ivx, MP4, AVC/H264…), AC3/DTS, rat DVD, VP3/VP6, Indeo, XVD, Theora, Subtitles, OGG/OGM, Matroska, APE, FLAC, TTA, AAC, MPC, Voxware, 3GP/AMR… without any other Media Player (But latest Windows Media Player it recommend for the new Windows Media format).
Vista Codec Package 4.7.2
With Vista Codec Package installed, you won’t need to install any other codec or filter
X264 Video Codec rev. 934
X264 is a free library for encoding H.264/MPEG-4 AVC video streams.
True Audio DirectShow Codecs Suite 1.0
True Audio DirectShow Codecs Suite 1.0 allows 3rd party applications to work with the True Audio data streams. With the correct codecs installed it should be playable in Windows Media and any other DirectShow compliant player.
VoxWare MetaSound Audio Codec 22.214.171.124
Voxware provides high-quality sound using low- to mid-range bit rates. It comes with a variety of mono and stereo audio formats to choose from depending on your network bandwidth. It is also suitable for encoding mono voice-only content at extremely low bit-rates.