Software Activation

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4.00/5 (1 vote)

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Hi
I am working on a desktop application. I want to implement software activation in it so that we can provide trial version to client for 30 days, and after 30 days the software should ask for activation key.

I do not know how it should be implemented. Whether counting 30 days should start from installation date on client's pc or some thing else.

bye

Posted 4-Jan-11 3:00am

irfankhan200

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2 solutions

Solution 2

What you need is a licensing option.

There are different ways to achieve this
1) encrypted license files that contains the expiry dates etc.
2) encrypted license keys held in the registry
3) challenge/response mechanism which require an internet connection
4) probably others.......

Try: License Key Generation[^] or: How can I create a Product Key for my C# App[^] or: c# Licensing[^]

Also,
Cryptography 101 for the .NET Framework[^]

Hope this helps.

Posted 4-Jan-11 3:56am

Sandeep Mewara

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Manfred Rudolf Bihy 4-Jan-11 11:38am

Good links! 5+

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Manfred Rudolf Bihy · Accepted Answer · 2011-01-04T03:10:00

Solution 1

Look here that is something you could use:

Application Trial Maker[^]

Best Regards,
Manfred

Posted 4-Jan-11 3:10am

Manfred Rudolf Bihy

Comments

fjdiewornncalwe 4-Jan-11 9:57am

Excellent link... But sometimes I wonder why the OP doesn't just GOOGLE these things first.

Manfred Rudolf Bihy 4-Jan-11 10:22am

Or search on CP!

Sergey Alexandrovich Kryukov 4-Jan-11 15:19pm

Manfred, you earned my 5, but... could we possibly do something to counteract the laziness-beyond-boundaries of the inquirers? :-)

Manfred Rudolf Bihy 4-Jan-11 15:24pm

@SAKrykov: You are right, as so often, concerning the initiative some OPs are displaying. On the oher hand, these rep points are easily taken.
You can't get everything! :)