WMPOpenSemiEnd;
  WMPCount := WMPOpenCount;
  //order matters, since there is a limit
  WMPOpenExt('mkv', '*.mkv;*.mka', 'Matroska Media file');
  WMPOpenExt('mp4', '*.mp4;*.m4a;*.m4b', 'MPEG-4 Media file');  //removed m4v and mp4v since they are mostly unheard of and because of limitation
  WMPOpenExt('ogm', '*.ogm', 'Ogg Media file');
  WMPOpenExt('flv', '*.flv', 'Flash Video file');
  WMPOpenExt('ts', '*.ts', 'Transport Stream file');
  WMPOpenExt('wv', '*.wv', 'WavPack Audio file');  //set on registration of official WavPackDSSplitter.ax