how to set expiry date on my application

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I am developed a project on visual studio 2008 And sql server 2005.My question is when user install a software the software will uninstall after 1 year and software will install only once in one system?
plz help me!

Posted 14-Oct-12 19:25pm

NABIN SEN

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Sergey Alexandrovich Kryukov 15-Oct-12 1:32am

Why?!
--SA

3 solutions

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vivektiwari97701 · Answer 1 · 2012-10-14T20:17:00

Solution 3

Application Trial Maker[^]

Posted 14-Oct-12 20:17pm

vivektiwari97701

Kumar, Ravikant · Answer 2 · 2012-10-14T19:39:00

Solution 2

I think you need to add installation info (Date etc...) in registry at first installation and probably at each start up of application you need to compare with current date and decide what to do. During uninstallation just leave that info and check again while reinstallation. If the difference is more than a year, don't install.
Encrypt the installation info for security.

Posted 14-Oct-12 19:39pm

Kumar, Ravikant

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NABIN SEN 15-Oct-12 1:41am

how to set the information in the registry?

Kumar, Ravikant 15-Oct-12 1:44am

Hope it will help you - http://www.codeproject.com/Articles/3389/Read-write-and-delete-from-registry-with-C
http://www.sevenforums.com/general-discussion/170581-registry-editing-command-line.html

anshudutta · Answer 3 · 2012-10-14T19:35:00

you need to set the information in the registry when the software is being installed and poll that information on start up to check expiry.

To make sure that the application is installed only once, create a unique key using the computer name or cpuId of that computer (so that each computer will have a unique key) and set it in a registry location with encryption. When the application is being installed, calculate that key basd on the computer name and check the registry for that key.