Implementing a time based license

  • Thread starter Thread starter john
  • Start date Start date
J

john

What is the common pattern for implementing a license that
expires in 30 days (for demo versions of a product). I
dont want anything like a reg entry that the user can just
change and get them another month. something fairly hack
free.

what do most software manufacturars use?
 
I would think that an encrypted registry value along with a
TotalTimeElapesed value (so that changing your system date wouldn't extend
the 30 day trial period) would be the only way to accomplish this
effectively.
 
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