Category : Unprotects for Games and Such
Archive : UNPROT00.ZIP
Filename : MLINK206.UNP
Output of file : MLINK206.UNP contained in archive : UNPROT00.ZIP
The following is a method to unprotect MultiLink Ver 2.06 to allow
booting directly from hard disk without the need to insert the
MultiLink distribution disk.
ENTER COMMENTS
------------------------- ---------------------------------------
C>copy mlink.com mlink.bak Make a backup first!
C>debug mlink.com Start debug session.
-u 2dfa Unassemble from address 2DFA.
You should see:
xxxx:2DFA CALL 2F01
xxxx:2DFD JNB 2E10
xxxx:2DFF MOV CX,2908
xxxx:2E02 CALL 2F01
xxxx:2E05 JNB 2E10
xxxx:2E07 DEC BYTE PTR [2E0F]
xxxx:2E0B JG 2DF2
xxxx:2E0D JMP 07C4
xxxx:2E10 XOR BYTE PTR [2E0D],32
xxxx:2E15 MOV AX,[23C4]
xxxx:2E18 CMP [2705],AX
If you don't see this, you have another
version. If so, enter 'q' to quit the
debug session. Otherwise, continue.
The instructions at
xxxx:2dfa, xxxx:2e02, and xxxx:2e1c
need to be replaced.
-e 2dfa f8 90 90 CALL 2F01 is replaced by CLC, NOP, NOP
-e 2e02 f8 90 90 CALL 2F01 is replaced by CLC, NOP, NOP
-e 2e1c 90 90 JNZ 2E0D is replaced by NOP, NOP
-w Save the changes to disk
-q End the debug session.
*End of MLINK206.UNP*
6.UNP*
Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!
This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.
But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/