I'll just cut to the point and say Windows Media Player 11 isn't working. I click to launch the program but nothing happens.
I found this in Event Viewer logs:

Event Viewer suggests that I reinstall WMP 11 to fix the service problem but I'm not sure how. Can I just download the WMP 11 setup again and it offer me a reinstall option--I don't see a way to uninstall? Or is the setup only for XP, since Vista already includes WMP 11?