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How do companies know you have previously downloaded

Posted on 1998-01-03
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Last Modified: 2010-04-12
their software (and want to "try" it again)?
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Question by:yow
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jhance earned 50 total points
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It depends.  If it's a time expiration version of the software, it won't operate past a certain date.  If it's a x-day eval copy, they usually set a flag in the system registry to mark the starting period of the eval.  They can also create a file somewhere to keep the info.  If you're trying to defeat the time expiration on a piece of eval software you'll need to do some detective work to find out how they are doing it and then what you can do to defeat it.  By the way, I don't recommend or condone doing this.
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