[What's_nitro?]

I know, but I just prefer to keep it on.

The "direct from batch file" approach works fine. I'm using this code:

start wmplayer.exe "D:\Music\!Playlists\Playlist1.wpl"
ping -n 1 -w 3600000 1.1>nul
taskkill /f /im wmplayer.exe

The Task Scheduler approach required me to manually change the runtime for the batch file every night, since I rarely get to bed at the same time two nights in a row. This way is much simpler.