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protecting time-limited demos
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protecting time-limited demos


  • Subject: protecting time-limited demos
  • From: Ron Phillips <email@hidden>
  • Date: Thu, 17 Apr 2003 11:40:33 -0500

How does one protect a time-limited demo? I've seen discussions here about protecting licensed software but not demos. I am far from a licensing guru (hence the problem) but I see various schemes:

1) Somehow the time (or usage count) is hidden on the hard drive (?) - best I can guess. This solution is protected better than the Presidential football codes.

2) The demo customer gets a free trial license after install. How does that work?

I'm not looking for a solution "on the cheap." I'm willing to purchase, within reason, whatever solution or expertise that will solve this problem. I've looked at some postings here about modifying a file size in the bundle to keep up with launch counts. But all you need to do to defeat this is re-install the app. (I visualize keeping the .sit file on the desktop and re-installing after the demo lapses.)

If this is not the forum for this, could some kind soul point me to the place that is. I've been to the end of the internet and have found nothing.

Thanks in advance,
Ron
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