In yesterday's entry I mentioned Realplayer, forgot to mention that there's an alternative for Windows called (not surprisingly) "Real alternative"; this installs a reasonably good media player clone that can play Real Media files and (unlike Realplayer) doesn't monitor your net access etc. or spy on you for advertisers.
Latest (as in 12th June) update at http://www.free-codecs.com/download/Real_Alternative.htm