title: Fragmented MP4 support in Windows Media Foundation
body: <p>Can anyone please provide any notes regarding the support for playback of fragmented MP4 files in Windows Media Foundation? I have a proper fragmented MP4 file (ffplay, vlc, chrome are all happy with it). However on Windows 7 neither Windows Media Player, nor IE 11, nor Qt with WMF backend are able to play it ( <code>IMFSourceResolver::CreateObjectFromURL</code> returns <code>MF_E_UNSUPPORTED_BYTESTREAM_TYPE</code>) however on Windows 10 Windows Media Player, IE and Edge are all happy with the file. Is there something that can be installed on Windows 7 to obtain the same behaivor? I had the notion that IE11 had the support for HTML5 video and thus for fragmented MP4 files as well, however seems that this asumption has been wrong.</p>