i have a problem viewing AVI downloads, i download the file and when viewing it i get an error message Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file.. i have already downloaded VLC media player and XP codex pack 1.3.4( dont know much about it but i highlights sony DV software codec in the left window). how do i fix the problems.

Much help would great.
cheers