Upgrade to Media Player Classic.

Sorry, I wanted to reply to this but forgot. I've actually stopped using WMP for the most part. I tried Media Player Classic a while ago, but was terrible at the Matroska files I was trying to play. So I went back to WMP for a long while until, for a reason I can't quite remember, I switched to mplayer. I think it was because I'm positive that the concept of video codecs was created by the devil ("codecs is the devil!"), and merely loved the idea of downloading a bunch of files to the program's directory and having it use those.

I think the program is absolutely fantastic. What's unusual to me is that I'm hoping I'm never forced into using a GUI if they ever make a good one. All I have right now is an icon on my quicklaunch bar that I drag files onto when I want to play them. And having them play instantly is great.

mplayer for Windows