From Moses Gates:

e:
cd\rbbs\door\mn
doorway com1: /L: /M:30 /O:T /s:* /I:E:\RBBS\OPENSCR/P:E:\RBBS\DOOR\MN\NEWSxx.EXE /0
cd\rbbs

The "/I:E:\RBBS\OPENSCR" can be omitted as it's just an opening
screen I made up that doorway supports showing before the door opens.
Hope this helps.  If you need voice support it's 301-884-5393.
CUL8R.
Moses