660 pages of dealing with DivX 6. You'll find anything from working with Profiles to Frameserving with AviSynth and VirtualDub - unfortunately only in german at this time.
Download.Link-1 DivX 6 R.T.F.M. is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below for around 13.00USD.