BRL, when I use Windoze I use an alternative to Windoze Media Player called 'Media Player Classic'. It tries to be what WMP used to be before M$ software bloat.
There are packages of it available that handle Real & Quicktime files. Google for 'Real alternative' and 'Quicktime Alternative'. Each of these codecs comes with MPC as the media player. Install both packages & you'll get a single instance of MPC with Real & Quicktime ability.
I think I still have the install files if you can't find them on the net. Let me know & I'll email them to you.