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Asked: 2026-05-21T04:28:34+00:00

I am experimenting with software copy protection ideas and now I have the following

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I am experimenting with software copy protection ideas and now I have the following problem.

I have a trial version of my application. Trial data are stored in a certain file and also in some certain registry keys. Of course I know that user can break this trial protection by using some registry and file monitoring and backup tools but I want at least protect against some simple hacks like date-time changes and using Windows System Restore.

The problem is that Windows System Restore wipes out all my application files and also the trial data. I know that System Restore does not affect User’s documents folder but I not want to store the trial datafile there, because it is too obvious.

Is there any way I can stop System Restore to remove my trial data file?

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1 Answer

  1. Editorial Team

    Why not store it in the user’s doc application folder?

    • Encrypt the content in the file
    • When the file is gone, trial is over

    Application folder

    http://msdn.microsoft.com/en-us/library/bb425869.aspx

    Security through obscurity

    http://en.wikipedia.org/wiki/Security_through_obscurity

    Other option is the use of the application settings

    Best practice to save application settings in a Windows Forms Application

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