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From: aduncan@rhea.trl.oz.au (Allan Duncan)
Newsgroups: comp.os.cpm
Subject: Re: Sysgen and installing Z80CCP
Message-ID: <2192@trlluna.trl.oz>
Date: 9 Sep 90 22:46:45 GMT
References: <392E37688B1F801A10@uwplatt.edu>
Sender: news@trlluna.trl.oz
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From article <392E37688B1F801A10@uwplatt.edu>, by TAGLANCE@UWPLATT.EDU (LANCE TAGLIAPIETRA):
...  
> SYSGEN seems to be checking a few bytes in the image, and will lock
> the system up if those bytes do not agree with the cp/m ccp. I found

It is _copy protection_!  Sysgen and CCP contain the serial number of
the o/s, and sysgen checks if they match before doing a copy.  I think
it was to cater for OEM specials that were not supplied with a sysgen,
and you could only get new copies from the supplier, rather than create
your own.

Allan Duncan	ACSnet	a.duncan@trl.oz
(03) 541 6708	ARPA	a.duncan%trl.oz.au@uunet.uu.net
		UUCP	{uunet,hplabs,ukc}!munnari!trl.oz!a.duncan
Telecom Research Labs, PO Box 249, Clayton, Victoria, 3168, Australia.