setting expiry date for a software

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4.50/5 (2 votes)

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Dear friend
could you please help me to findout setting expiry date for a software.
when each day when the software run that day should be deducted from the limited days.
hope u will help me

Posted 26-Apr-11 23:30pm

jayasaroop

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2 solutions

Solution 2

You can store the encrypted installed date and use the LicenseManager class to implement the validating logic.

http://msdn.microsoft.com/en-us/library/system.componentmodel.licensemanager.aspx[^]

License Manager class provides a template to implement license logic.

Or you can use the ready made solutions available as Walterhevedeich informed.

Posted 26-Apr-11 23:38pm

Albin Abel

Comments

Sandeep Mewara 27-Apr-11 12:07pm

My 5!

Albin Abel 27-Apr-11 12:14pm

Thanks Sandeep. I given this information after OP accepted Walter's answer. Just to inform the way for a custom license managing. Software cracking is a continuing story and so far ready made solutions are cracked. So when OP thinks of implementing his own way this information is a little help for him. Thanks for your voting

Sandeep Mewara 27-Apr-11 12:17pm

Thats ok. It's a good info and that matters and deserves credit. :)

walterhevedeich 29-Apr-11 4:39am

Interesting. My 5. One question though, how does the LicenseManager validates the encrypted installed date when the user changed the system date/time? Im just curious about this one because I tried changing the system date on one of my virtual boxes just to avoid the expiration of the trial software(not sure if it was also using LicenseManager) I installed. Luckily, it worked, seemed like it was basing its validation on the installed date alone. :)

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walterhevedeich · Accepted Answer · 2011-04-26T23:33:00

Solution 1

You may want to read this article in CP.

Application Trial Maker[^]

Posted 26-Apr-11 23:33pm

walterhevedeich