China DOS Union

I'm a newbie. I learned some basic DOS knowledge before, and last night I somehow cobbled together an antivirus boot disk with USB support. This disk came bundled with some antivirus software CDs. After booting up, I found that 121K of conventional memory had already been used, and upper memory wasn't being used at all. Also, I noticed that on computers with multiple CD-ROM drives and USB devices, conventional memory usage is even worse, causing programs to be unusable.
I don't have an FTP set up. If any related files are needed, I can send them instantly over QQ. No other way, sorry to trouble you all.
QQ： 253893036

Here is the content of AUTOEXEC.BAT:

@echo off
set EXPAND=YES
SET DIRCMD=/O:N
set LglDrv=27 * 26 Z 25 Y 24 X 23 W 22 V 21 U 20 T 19 S 18 R 17 Q 16 P 15
set LglDrv=%LglDrv% O 14 N 13 M 12 L 11 K 10 J 9 I 8 H 7 G 6 F 5 E 4 D 3 C
call setramd.bat %LglDrv%
set temp=c:\
set tmp=c:\
path=%RAMD%:\;a:\;%CDROM%:\
copy command.com %RAMD%:\ > NUL
set comspec=%RAMD%:\command.com
copy extract.exe %RAMD%:\ > NUL
:ERROR
IF EXIST ebd.cab GOTO EXT
echo Err
pause
GOTO ERROR
:EXT
%RAMD%:\extract /y /e /l %RAMD%: ebd.cab > NUL
LH ctmouse.exe /r3
LH mscdex.exe /D:CDROM1 /K /L:%CDROM%
copy/v %CDROM%:\kvdos\*.* %RAMD%:\ >NUL
%RAMD%:\

-----------------------------------------------------------------------------------------
Here is the content of CONGIG.SYS:

device=himem.sys
DEVICE=EMM386.EXE
DeviceHigh=USBASPI.SYS
DeviceHigh=Di1000dd.SYS
DeviceHigh=vide-cdd.sys /d:CDROM1
devicehigh=ramdrive.sys /E 8192
shell=command.com /p /e:640
dos=high,umb
files=30
buffers=30,0
LASTDRIVE=32
stacks=9,256
lastdrive=z
NUMLOCK=ON

The following is a quote from hesiemens on 2003-11-15 10:10:17:
I'm a newbie. I learned some basic DOS knowledge before, and last night I somehow cobbled together an antivirus boot disk with USB support. This disk came bundled with some antivirus software CDs. After booting up, I found that 121K of conventional memory had already been used, and upper memory wasn't being used at all. Also, I noticed that on computers with multiple CD-ROM drives and USB devices, conventional memory usage is even worse, causing programs to be unusable.
I don't have an FTP set up. If any related files are needed, I can send them instantly over QQ. No other way, sorry to trouble you all.
QQ：  253893036

Please refer to Master Rushi's boot disk

Please show me the way.

Thanks a lot for the introduction.

Is it split into multiple archive volumes? Where is the other half?

! RSDSBD.IMZ CRC failed. The file is corrupted
Is there something wrong with the file?

Rename 2003469312529412.rar to rsds.part01.rar ,
and rename 20034517112843892.rar to rsds.part02.rar

! RSDSBD.IMZ CRC failed. The file is corrupted
Same here too!

I looked at your CONFIG.SYS and found the problem here

DEVICE=HIMEM.SYS
DEVICE=EMM386.EXE RAM

One more suggestion:
LASTDRIVEHIGH=Z
FILESHIGH=30
BUFFERSHIGH=30,0
STACKSHIGH=9,256

I can tell you're imitating Wengier's boot disk Config.sys, but why are you using both:
LASTDRIVE=32
LASTDRIVE=Z
??? (Although I still don't know what 32 means even now, the 32nd drive letter?)

You could say I'm imitating it, because my DOS knowledge is insufficient, so I could only piece things together. If I've offended anywhere, please forgive me, I'm a newbie.

The following is a quote from iceboy on 2003-11-15 15:02:30:
Although I still don't know what 32 means, the 32nd drive letter?

There is a 32nd drive letter..... netware compatibility

The following is a quote from iceboy on 2003-11-15 15:02:30:
I looked at your CONFIG.SYS and found the problem here

DEVICE=HIMEM.SYS
DEVICE=EMM386.EXE RAM

One more suggestion:
LASTDRIVEHIGH=Z
FILESHIGH=30
BUFFERSHIGH=30,0
STACKSHIGH=9,256

I can tell you're imitating Wengier's boot disk Config.sys, but why are you using both:
LASTDRIVE=32
LASTDRIVE=Z
??? (Although I still don't know what 32 means, the 32nd drive letter?)

I modified CONFIG.SYS according to your suggestions, but during startup the computer cannot recognize:
LASTDRIVEHIGH=Z
FILESHIGH=30
BUFFERSHIGH=30,0
STACKSHIGH=9,256