- Jan 15, 2009
- Reaction score
Chris Pirillo has posted more info on Windows 7's latest build, 7057. Apparently, you can't install any video decoders from third-party developers. It's completely locked and no one can change that setting.
LinkMicrosoft has locked mpeg4 and h264 codecs into Media Foundation, the replacer of DirectShow (even if directshow is still supported).There is no way to override those codecs, even if you develop a Media Foundation version of your decoder, because Microsoft maintains a list of preferred codecs (their codecs) into the registry (HKEY_CLASSES_ROOT and HKLM \MediaFoundation\Transforms\Preferred), and this registry key cannot be modified, even in admin mode. Only TrustedInstaller user can modify it, which is FYI the user that protects system files, and it cannot be used. Microsoft brought those new codecs, but blocked the possibility to use alternate codecs in their applications.