i have just been trying that out, but it does not seem to be working, so i press ctrl and F11 or is it ctrl and - and F11

i need help slowing down keys to marmon, it doesn't seem to be a very popular game but i hope someone else has tried it, i have dosbox, but it doesn't slow it down, uless i am using ti wrong, and all the other programs like cpukiller just make it to jumpy to play. i have xp any help please