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You need to install a license to use Gelecek OPC Client Components or Gelecek OPC Connectors.

Without license you can use these software packages for testing, but you will get a nag screen frequently.


Except for nag screen, all components are fully functional.

nag screen


After you install license, you can distribute your applications with royalty free.


How to install license

 When you buy a license, we will send you a License Installer Tool and a License Key.

 You will just use this tool and key to install license.

 After installing license, you need to restart Visual Studio.