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1984-11-23
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The protection scheme of MultiLink 2.08 is very similar to the one
in release 2.07. The addresses are different and your debugger may
kick out different mnemonics than those shown on the jumps. However
that may be, do not REPEAT ... DO NOT issue a GO command or the whole
scheme will fall apart and it will be very difficult to find yourself
again. The best method is to search for the pattern
MOV CX,2903 and use that as your starting point. Note: Both DEBUG and
TRACE 86 load with the addresses shown below. The code segment may
(and probably will) be different in your machine.
1450:3a0e b90329 mov cx,2903
1450:3a11 e8ff00 call 3b13 (change to NOP,NOP,NOP 90,90,90)
1450:3a14 731c jnb 3a32 (change to JMP,3a32 eb,1c)
1450:3a16 b90829 mov cx,2908
1450:3a19 e8f700 call 3b13 (change to NOP,NOP,NOP 90,90,90)
1450:3a1c 7314 jnb 3a32 (change to JMP, 3a32 eb,1c)
1450:3a39 75e9 jne 3a24 (change to NOP,NOP 90,90)
1450:3aea 740b je 3af7 (change to JMP, 3af7 eb,1c)
Naturally, these instructions assume you are capable of using
DEBUG and intend to implement these suggestions for your own
peace of mind only. PLEASE DO NOT PIRATE ROD ROARK'S WORK.
Without him, most of us Po Folks couldn't be using multi-user
right now on the PC. Personally, I just hate being tied to the
floppy when so much cash went into the hard drive.