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Possible Duplicate:
Incorporating license key approach for a WinForms app

I would like to make random license key such that if any one installed my application i would like to give him a license along with the application which may end in a month or so. And the key should only work on particular system he installed and not in any other PC.

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Developer
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2 Answers2

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There are many commercial products that might help you in this task. One example is xheo.

Darin Dimitrov
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  • If i wish to develop my own license then how can i do this for complete application – Developer Oct 02 '10 at 09:11
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    I would recommend you not developing custom solutions but use one of the existing licencing libraries out there. Remember that cracking a licence is directly proportional to time and pirate skills, so if you really value your intellectual property don't reinvent the wheel. – Darin Dimitrov Oct 02 '10 at 09:14
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Have a look at this question:

Securing a license key with RSA key

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James Westgate
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