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?>>
I Developed application in C# with crystal reports and created setup file in third party (Advance) Installer.When i installed my application on client system application is working but ...