This is where you can post your Commander Keen related stories, artwork, or other stuff that is related to Commander Keen but otherwise doesn't belong in another forum.
I'm pretty sure dosbox settings don't matter for Keen. All I use is a higher OPL rate to possibly emulate adlib sounds/music better, but whether or not it actually does something, I can't really hear.
I think the main thing is that if you are getting that annoying black flicker in Galaxy Keen, just toggle on 'SVGA compatibility' on the main (computer wrist) menu and it will go away. Everything else is optimal in Dosbox running in any civilised version of windows e.g. 7.