下面這個批次檔存成 auto.bat (或是直接加在autoexec.bat 後面....)
==============================
echo off
DOSKEY
:begin
cls
type C:\MENU.TXT
respond ABDEF
cls

if errorlevel 70 goto ETOAPE2
if errorlevel 69 goto ETPE2
if errorlevel 68 goto PE2
if errorlevel 66 goto ET
if errorlevel 65 goto WIN
goto begin
:ETPE2
CD\
CALL ET3
PE2
goto begin
:ETOAPE2
CD\
CALL ET3
CD\
cd\OAGM
CALL OA
cd\
PE2
goto begin
:WIN
etctl/c:iq
CD\
WIN
CD\
GOTO BEGIN
:ET
etctl/c:iq
CD\
call et3
goto begin
:PE2
CD\
pe2
goto begin

===========================

再把下面這個存成 MENU.TXT (在 c:\)
============================
PC OPERATOR SYSTEM MAIN MENU
+---+---------------------------+
| A | WINDOWS 3.1
|---+----------------------------|
| B | ET CHINESE SYSTEM
+---+----------------------------|
| D | DOCUMENT PROCESS -> PE2
|---+----------------------------|
| E | ET->PE2
---------------------------------|
| F | ET->OAMATE->PE2
|---+----------------------------|
SELECT FUNCTION CODE ..........

===============================

ok,這樣開機選單批次檔就好了,再去打開AUTOEXEC.BAT 檔,把
auto.bat
加到後面即可....(如果直接把批次檔附在AUTOEXEC.BAT 中,可略這一程序)

這個方法其實和 Crazynut的方式類似,但用 errorlevel 呼叫,記得比較沒有DOS版本的支援問題....好久的記憶了!