To install, you need to download the Dr. DivX package from the official download page
and then download the Required DLLs
(drffmpeg.dll and avdsp.dll) and put it in your Dr. DivX directory (default: c:\Program Files\DivX\DR. DivX 2.0 OSS\).
The official change log is as follows:
- Updated for DivX 6.6 codec
You may download this updated version here
You can also download DivX 6.6 codec here