Installation instruction: 

W9x/WinME: double click on registerfilters-98.bat
W2K/WinXP: double click on registerfilters-2k.cmd

this will install filters required for ac3 playback and the stream switcher for dual audio avis.

Note-iviaudio.ax is version 2.6

removepath is a command line utility to remove the absolute path in graph files created by 
graphedit.

This file was downloaded off doom9.net