[求助]播放Video Clip格式的文件需要装什么CODE文件？

我下载了一部电影，格式是Video Clip的，MEDIA PLAYER无法播放，提示：'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.'
怎么回事呀？有什么办法可以解决？