Codec Installation Package for Windows Media Player 6.4 contains the following codecs:
- Windows Media Video 9 VCM
- Windows Media Audio 9
- Windows Media Screen 7
- Windows Media Audio 9 Voice DirectShow
- Windows Media Video 8
- Microsoft MPEG-4 version 1 and 2
- ISO MPEG-4 version 1 and 1.1
- Windows Media Video 9 VCM
- Windows Media Audio 9
- Windows Media Screen 7
- Windows Media Audio 9 Voice DirectShow
- Windows Media Video 8
- Microsoft MPEG-4 version 1 and 2
- ISO MPEG-4 version 1 and 1.1