1. EMS
2. XMS
3. Windows

[MENU]
REM syntax: Name, Descritopn
MENUITEM=DOS,   DOS w/o CD
MENUITEM=DOSCD, DOS with CD
MENUITEM=WIN,   Windows

[COMMON]
DEVICE=C:DOSHIMEM.SYS
DOS=HIGH,UMB

[DOSCD]
REM this is only loaded when "DOSCD" is selected
DEVICE=C:DOSEMM386.EXE NOEMS
DEVICE=C:DOSCDROMDRV.SYS /D:CD1

[DOS]
REM this is only loaded when "DOS" is selected
DEVICE=C:DOSEMM386.EXE NOEMS

[WIN]
REM and this for "WIN", items can even be empty

...

REM Uses the identifier from CONFIG.SYS to goto a label
GOTO %CONFIG%

REM DOSCD: add mscdex
:DOSCD
LH C:DOSMSCDEX.EXE /D:CD1
GOTO EXIT

REM no mscdex needed
:DOS
GOTO EXIT


REM right into Windows
:WIN
win :

:EXIT

[MENU]
MENUITEM=EMS
MENUITEM=XMS
MENUITEM=Windows

[COMMON]
DEVICE=C:DOSHIMEM.SYS

[EMS]
DEVICE=C:DOSEMM386.EXE

[XMS]

[Windows]

@ECHO OFF
:: Common startup here
GOTO %CONFIG%

:EMS
:: EMS-specific setup here
GOTO END

:XMS
:: XMS-specific setup here
GOTO END

:Windows
:: Windows-specific setup here
GOTO END

:END