Press Next in AviSynth Script Generator

Browse for the .ac3 file created from DVD2AVI and Press OK
Choose the number of channels of the AC3 file

Press Convert and you will have your WAV files for use in WME9.
Close AviSynth Script Generator for WME
Note: AviSynth Script Generator can be used for AC3 to WAV conversion (using BeSweet) only if the AC3 file was created by DVD2AVIdg. If you have an AC3 file from another source, please use the BeSweet Command Line or BeSweet GUI.