China DOS Union

This is a batch file from a boot disk:
Who can help me translate what these commands mean??!!!
I'm really dumb~~~~~ If you want the original file, send me an E-MAIL!yuzhengkai@163.com
type autoexec.bat

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%
path=C:\;%RAMD%:\;%RAMD%:\BAT;%CDROM%:\;%CDROM%:\UCDOS;%CDROM%:\BOOT;
copy get.exe %RAMD%:\ > NUL
copy attrib.exe %RAMD%:\ > NUL
copy command.com %RAMD%:\ > NUL
copy edit.com %RAMD%:\ > NUL
copy format.com %RAMD%:\ > NUL
copy fdisk.exe %RAMD%:\ > NUL
copy deltree.exe %RAMD%:\ > NUL
copy restart.com %RAMD%:\ > NUL
copy readme.exe %RAMD%:\ > NUL
copy ramexec.bat %RAMD%:\ > NUL
copy xxcopy.exe %RAMD%:\ > NUL
rem copy extract.exe %RAMD%:\ > NUL
set comspec=%RAMD%:\command.com
LH MSCDEX.EXE /D:MSCD000 /L:%CDROM%
LH SMARTDRV.EXE 4096
LH DOSKEY.COM > NUL
LH MOUSE.COM > NUL
Set LglDrv=

MD %RAMD%:\TEMP
rem extract /y /e /l %RAMD%: ebd.cab > NUL
XXCOPY /E /H %CDROM%:\BOOT\EBD %RAMD%:\ > NUL
%RAMD%:
ramexec.bat

qq:19540580 Chat when you have time

---------- Edited by willsort ----------
Original title modified: Who can tell me》????Help!!!!! Experts and veterans, come help!
---------- Edited by willsort ----------

[ Last edited by willsort on 2005-9-23 at 20:21 ]

SET EXPAND=YES ；set the environment variable EXPAND to YES
SET DIRCMD=/O:N ；set the DIRCMD variable to /O:N (controls the DIR command)
；The following two lines set the drive letters of the logical drives (c-z) as the environment variable LglDrv
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% ；call SETRAMD.BAT and use the logical drive letter environment variable as the parameter
;Below sets the search path; %RAMD% and %CDROM% are the virtual disk and CD-ROM drive letters returned by SETRAMD
path=C:\;%RAMD%:\;%RAMD%:\BAT;%CDROM%:\;%CDROM%:\UCDOS;%CDROM%:\BOOT;
copy get.exe %RAMD%:\ > NUL ；copy the file get.exe to the virtual disk, redirect output information to NUL (so they are not displayed on the screen); the usage below is the same
copy attrib.exe %RAMD%:\ > NUL
copy command.com %RAMD%:\ > NUL
copy edit.com %RAMD%:\ > NUL
copy format.com %RAMD%:\ > NUL
copy fdisk.exe %RAMD%:\ > NUL
copy deltree.exe %RAMD%:\ > NUL
copy restart.com %RAMD%:\ > NUL
copy readme.exe %RAMD%:\ > NUL
copy ramexec.bat %RAMD%:\ > NUL
copy xxcopy.exe %RAMD%:\ > NUL
rem copy extract.exe %RAMD%:\ > NUL ;Lines beginning with REM are comments; this line will not execute
；Below sets the COMSPEC variable, specifying that the DOS command interpreter command.com is located on the virtual disk
set comspec=%RAMD%:\command.com
；Below calls DOS's CD-ROM extension program, letting the CD be read by DOS as a DOS disk
LH MSCDEX.EXE /D:MSCD000 /L:%CDROM%
LH SMARTDRV.EXE 4096 ；start the disk cache tool, set a 4K cache (so small?)
LH DOSKEY.COM > NUL ；start DOSKEY, don't send the information to the screen
LH MOUSE.COM > NUL ；start the mouse driver.
Set LglDrv= ；delete the environment variable LglDrv

MD %RAMD%:\TEMP ;create the TEMP folder on the virtual disk
rem extract /y /e /l %RAMD%: ebd.cab > NUL ；REM comments out this line so it will not execute
XXCOPY /E /H %CDROM%:\BOOT\EBD %RAMD%:\ > NUL
；The line above copies everything in the CDROM's \BOOT\EBD subdirectory to the virtual disk, without displaying information
%RAMD%: ；switch to the virtual disk
ramexec.bat ；execute the ramexec.bat file on the virtual disk

Satisfied? This should be a DOS boot CD made by some expert; the CD also has UCDOS installed

Yes, it is a boot disk made with slight modifications to the MS-DOS 7.x boot disk included with Win9x, but the quality is still only average.

LH SMARTDRV.EXE 4096 ；start the disk cache tool, set a 4K cache
There is a typo in the sentence above; it should be changed to:
LH SMARTDRV.EXE 4096 ；start the disk cache tool, set a 4M cache




[ Last edited by willsort on 2005-9-23 at 20:18 ]

Hehe, it's the autoexec.bat from Wuyou Boot, right?