AMocx1:
   This is a standard ActiveX control for ActiveMovie playing MPEG file. Just for comparison.
AMocx2:
   This is the same ActiveX control, but this time it plays H.263 file from local disk. It
  uses H.263 decoder developed in NPAC (based on Telenor decoder) and built into ActiveMovie.
AMocx3:
   ActiveX control, this time playing H.263 file from NPAC video server. Thanks to extension
  of AcitveMovie we can use its standard mechanisms to play from video server.
AMgraph1:
   Filter graph playing H.263 file (heads.263) from local disk. Our H.263 decoding filter is
 shown. Source filter, color space converter and video renderer are standard AM filters. This
 graph is automatically constructed by ActiveX control shown in AMocx2 file.
AMgraph2:
   Filter graph playing H.263 file and audio simultaneously. NPAC audio decoder is an ADPCM
  decoder.
AMgraph3:
   Filter graph playing H.263 file from video server. This time we replaced file source filter
  with our video client. This graph is automatically constructed by ActiveX control shown in
  AMocx3 file.