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From: wmartin@brl-tgr.ARPA (Will Martin )
Newsgroups: net.ai
Subject: Re: Softwar
Message-ID: <3082@brl-tgr.ARPA>
Date: Mon, 2-Jul-84 15:26:22 EDT
Article-I.D.: brl-tgr.3082
Posted: Mon Jul  2 15:26:22 1984
Date-Received: Tue, 10-Jul-84 04:35:12 EDT
References: <1387@sri-arpa.UUCP>
Organization: Ballistics Research Lab
Lines: 13

While it would be easy to control the system-date on micros or a small
machine which you use by yourself, on a large mainframe in a production
shop there are many programs moving in and out of the machine which
rely on the system-date being accurate. If you tried to manipulate that
date just to make use of software with embedded expiration traps, you
would incur more costs from the ill effect on the other jobs than you
were saving by not paying for the software package in question.

So it is not a foolproof safeguard in an academic or small-machine
environment, but pretty effective in a large-machine commercial
production shop (the traditional IBM world).

Will