Solution for AviSynth + VirtualDub + XVID or DIVX

1) Install AviSynth 2.6 win32 (AviSynth_090927.exe), and VirtualDub 1.9.11 win32.

2) Registering the avi filters to the windows by DirectShow FilterPack 4.1

3) Install XVID

4) Using VirtualDub read the initial XVID or DIVX coded avi videos and output the normal format avi videos.

5) Then use AviSynth to edit and re-process by the VirtualDub.