Will stop playback of winamp after a given number of minutes. Can be easily changed to stop playback after a number of tracks.

i = 0
num = CInt(InputBox("Timeout in minutes"))
if num > 0 then
	setTimeout 60000,GetRef("stoptimer")
else
	quit
end if
 
sub stoptimer
	i = i + 1
	if i >= num then
		stopplayback
 		quit
	end if
	setTimeout 60000,GetRef("stoptimer")
end sub