I dont know if you already know that but look at this message I found it on Wacko HomePage "Acko.net"
This is an experimental APE (AVS Plug-in Effect) that allows you to capture the AVS output and save it to an AVI.
Even though you can select any codec you wish, it's advised to save the output as uncompressed video or raw output and compress it later on. Raw output is the fastest, but might produce an avi that is not compatible with some programs. Regular uncompressed video is still pretty fast and a good alternative.