Licensing the SDK

After purchasing the OPC UA .NET SDK you will receive your personal license file and a Release version of the SDK. To activate the license in your appliaction, you need to take the following steps:

• add the license file to your project as an embedded resource;
• use the current Release version of the UnifiedAutomation assemblies;
• load your license file during start-up in the Main() function of the application (see example below).

Note

You should always use the license file that comes with your SDK version!

In the following example, the name of the resource, UnifiedAutomation.Sample.License.License.lic, is composed of

• the namespace UnifiedAutomation.Sample; remember to change this to the namespace used in your product;
• the path to the license file License.License.lic; the license file (License.lic) is in our example located in an extra folder called License; remember to change this to your own folder structure.

static class Program
{
    static void Main()
    {
        try
        {
            // applications without a UnifiedAutomation license embedded as a resource will stop working after 1 hour.
            ApplicationLicenseManager.AddProcessLicenses(System.Reflection.Assembly.GetExecutingAssembly(), "UnifiedAutomation.Sample.License.License.lic");

            ApplicationInstance.Default.Start();
        }
        catch (Exception e)
        {
            ExceptionDlg.Show(null, e);
            return;
        }
    }
}

If you have problems with licensing, refer to chapter License Issues.