luis@grinch.UUCP (luis) (10/14/87)
Hello net-landers,
I have a peice of software, but want to protect it against someone
else running it without the proper 'key'. I plan to make the key a
PROM, but can't figure out where to put it on an IBM PC/AT. I have a
PC, XT, and an AT, and there are open slots next to the BIOS on the PC
and XT, but none on the AT. I found the memory locations for the chips
on my XT with no problems (F000:4000), but like I said, there are NO
slots next to the BIOS on the AT (compatable). Is this because of my
compatible? Are the sockets located somewhere else on the mother board
that I haven't noticed? And, if there are NO sockets (like I suspect), is
it illegal to change a byte on the IBM PC/AT BIOS's even if it's at a location
that is NOT used? To do this, I would have to COPY the BIOS chips, would that
be illegal even if I don't modify them?
I have sent away for info about a little plug that you plug into your
RS-232 port, but they haven't sent me anything yet. So, if anyone knows
anything about these little 'plugs', I would appriciate any information which
you could supply on them (i.e. How do they work? How do I access them? etc..).
I know I have alot of questions, but any/all help would be MUCH
appriciated. So that the net doesn't get cluttered up, please send me
any/all responses via E-MAIL. If there is enough interest, I will summerize.
Thank you in advance...
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Luis Chanu "Live every day as if it were your last,
UUCP: ihnp4!sun!aeras!grinch!luis because one day you will be right."
UUCP: lll-crg!vecpyr!wjvax!grinch!luis -Benny Hill
Disk-Claimer: That's not your disk, that's my disk.
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