I have tried to open a self recorded video with VirtualDub,
a Freeware Video Editing Software.
However, the video file was recorded by a camcorder using Intel Indeo
Video format, and VirtualDub was not able to open it.
I don't know whether the codec is supplied with Windows 7 or not, but
after installing the K-Lite Codec pack Standard from codecguide.com, it
still could not open the file properly.
It seems that the codec has to be registered in Windows seperately:
Start a command prompt as Administrator and change to the directory