IBEM
I'm not certain this is really addressed to me; I think someone else in the
conversation is the intended recipient. However I see you're talking about
IBeM – your disk in the "MS-DOS" drive should be a fully bootable disk by
DOS standards, including Command.com, DOS, and those "invisible" two files
whose names I forget. Actually autoexec.bat can be done without, though
there are good reasons for using one.
– via Whap!