Hehe, found a modified version of DOS 7.1 over at Wuyou - China DOS Union Forum

The main changes are as follows:
The IMG size was changed to 2.88M
Changed to ISO boot mode
Uses JO.SYS to choose whether to boot from CD or hard disk
Converted readme.txt into readme.exe (so Chinese can be displayed directly without booting the xzl system)
Fixed the RAM virtual drive letter to Z:
Added XCOPY.EXE -- the powerful XCOPY replacement tool (XXCOPY16)
Added CMOS.COM -- clears the BIOS password
Added MOVE.EXE -- the move file command
Added HD.EXE -- the HD-COPY floppy disk tool
Added menu support for UltraBoot Disk
At startup, when choosing the LFN code page, the default selection is the second item (Chinese)
At the end of startup, if ESC is not pressed within 2 seconds, the menu is displayed automatically
The original version is here:
http://model.chinajewelry.net/dos/dosbbs/dispbbs.asp?boardID=11&ID=1706

The modified version is here:
http://www.iso9660.net/UpLoadFile/2004-1/2004131195753913.zip

Floor1　hunome	Posted 2004-02-17 00:00
银牌会员　Posts 721　Credits 2,265
The main changes are as follows: The IMG size was changed to 2.88M Changed to ISO boot mode Uses JO.SYS to choose whether to boot from CD or hard disk Converted readme.txt into readme.exe (so Chinese can be displayed directly without booting the xzl system) Fixed the RAM virtual drive letter to Z: Added XCOPY.EXE -- the powerful XCOPY replacement tool (XXCOPY16) Added CMOS.COM -- clears the BIOS password Added MOVE.EXE -- the move file command Added HD.EXE -- the HD-COPY floppy disk tool Added menu support for UltraBoot Disk At startup, when choosing the LFN code page, the default selection is the second item (Chinese) At the end of startup, if ESC is not pressed within 2 seconds, the menu is displayed automatically The original version is here: http://model.chinajewelry.net/dos/dosbbs/dispbbs.asp?boardID=11&ID=1706 The modified version is here: http://www.iso9660.net/UpLoadFile/2004-1/2004131195753913.zip

Floor2　Wengier	Posted 2004-02-17 00:00
系统支持　Posts 10,521　Credits 27,736
Was it modified by pkmaster?

Floor3　hunome	Posted 2004-02-18 00:00
银牌会员　Posts 721　Credits 2,265
Maybe, from Pike Empire.

Floor4　maple	Posted 2004-02-18 00:00
中级用户　Posts 137　Credits 417
The archive inside, 2.iso, has a problem! Please fix it!

Floor5　hunome	Posted 2004-02-18 00:00
银牌会员　Posts 721　Credits 2,265
I didn't modify it, I only reposted it