Okay, so I made a program and I want the User to no longer have access to it after a certain date which i classify. And i want the program to NOT grab the system local time because the user can simply change the date to have an infinite subscription. How do i grab the internet time of GMT +2 for example and set it so after a week, month, year etc.. it expires and the program shuts down with a message of expiry along with a live timer on the program counting down. Any ideas?
to no longer have access to it after a certain date
If you want it time limited, it's easier to do this relating to total time the program is used. So you could allow say 3 hours of usage as a trail. You could then charge by say the usage allowed.