RealPlayer
a lousy media player that tries to make itself at home on your computer too much, you can argue that this is even worse than Windows Media Player. The only possible redeeming quality is that you can download videos with it, heck even that has limitations (i.e. you can't download copyrighted stuff) and the stuff you downloaded can be watched on VLC. There's another possible redeeming quality, the proprietary file extensions (RM & RMVB) is compressed and can be watched on VLC.