Member Avatar for lianpiau

I want make the installer for free try 30 days. after 30days disable the function of program. so I'm want to get user install date + 30days to get expire day. When user key in license key, then can use program.

As a result, how can I get the install date and how to detect license is valid??? Or any expert got any suggestion?>>

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Member Avatar for lianpiau

Check this link might be very helpful

Thank you very much

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