Union site: www.cn-dos.net Forum site: www.cn-dos.net/forum
DOS stands for freedom, openness and progress. Let us work hard, learn from the openness and GNU spirit of FreeDOS and Linux, and together build and grow a free GNU GPL world!
Credits 27,736 Posts 10,521 Joined 2002-10-09 12:00 23-year member UID 9
Status Offline
Great news: I just conducted internal comparisons and analyses of IO.SYS in MS-DOS 7.10, and have successfully modified it to make it completely immune to logic locks! In this way, it can start normally like an ordinary DOS boot disk as usual, and even when the hard disk is locked by a logic lock, it can also start normally to DOS. It has been tested and passed on my computer. Now I provide this boot disk for download, everyone can give it a try:
Credits 1,231 Posts 498 Joined 2002-12-03 00:00 23-year member UID 398 Gender Male
Status Offline
Just one more question, I just want to overwrite the IO.SYS file in the original boot disk I made, is that okay? What about MSDOS.SYS What are ECHO.SYS and IFSHLP.SYS, etc.?
Credits 27,736 Posts 10,521 Joined 2002-10-09 12:00 23-year member UID 9
Status Offline
The following is a quote from jssyq on 2003-6-21 8:31:37:
Ask more, I just need to overwrite the IO.SYS file in the original made boot disk, is that okay? The MSDOS.SYS ECHO.SYS IFSHLP.SYS What are these,
IO.SYS and MSDOS.SYS are of course no problem, they can be replaced completely..
Files like ECHO.SYS and IFSHLP.SYS are all additional programs. For example, ECHO.SYS is a program used to display text in CONFIG.SYS, and it can be selected as needed.
Credits 27,736 Posts 10,521 Joined 2002-10-09 12:00 23-year member UID 9
Status Offline
The following is a quote from Roy on 2003-6-21 10:26:29:
Wengier, you seem to have changed many places... Comparing with the io.sys from April 21...
There's nothing more. Actually, for the part about the logical lock, I only changed four bytes in IO.SYS, and the rest are changes to the prompt messages.
