the file or somthing you were missingis called a codec. the file is named Xvid.codec . Its a program attachment that tells the window media player (in my case) how to handle the file which is a mpeg4 type. I too came to this forum seeking answers, except I found the solution thanks to the gspot program (
http://gspot.headbands.com thanks dude for that insight) . after finding that my xvid codec was missing I went to to google searched it found it installed it from the web sight
http://files.divx-digest.com/software/c ... nstall.exe Hope this helps others better than "nevermind" peace out.