When dealing with codecs, more does not equal better. Having the least amount on your system is the best configuration. This is exactly what the Vista Codec Package does for you.
Below the is the official change log for Version 4.5.2 :
- update ffdshow components to 1589
- fix broken mpeg/mpe/mpg thumbnails
- update filetype icon size (Vista compatible)
- enable audio track selection in WMP11
- add support for TrueSpeech Audio in Vista
- remove DivX from conflict detection routine
- fix .MOD playback for Vista WMP11/MC
- fix HD-MOV URL handling/downloading
- improved .ts and .m2ts playback
- fix 7zip install errors
You may download this new version
here.