software expiration date and time

Question

i want to set a software expiration date and time in dot net application.how do i do that?

ssware · Answer

You could use a licensing system like CryptoLicensing which supports trial/full schemes, date based expiry, etc.

Vijaya Kadiyala · Answer

Hi There are several ways as Lisa explained but when you are setting this parameter always encrypt it so that no one can hamper it :) just like i used to do it... Thanks -- Vijaya Kadiyala http://dotnetvj.blogspot.com

Lisa · Answer

well there are quite few ways to check this up 1. create an installer for ur application, record the date it was installed and check the date everytime the application starts , when it does expire just shutdown the application. 2. if you use a datadriven application using a database dont allow users to login after the date expires with setting the date from the first time logged in. 3. editing the registry of client machines the application has been installed and check the registry everytime the application starts and do accordingly 4. there are numerous license wrapper provider (commercial) which can do all this work you just need to configure it to use your application. Think which is best and how good it is and choose (the first 3 do have some effort and disadvantages though). Thanks, Lisa

chintan desai · Answer

yes.i want my application to be utilized only for 30 days.like trial version.thanks.

Lisa · Answer

do you mean something like a License Wrapper to your application ? Thanks, Lisa