AdminStudio versions 2013 and earlier rely on the InstallShield Activation Service (which was discontinued on July 1, 2022) for activations. AdminStudio versions 2013 and earlier have reached their end-of-service-life; however, the product will continue to function and rely upon the InstallShield Activation Service for license activation. There will be no impact if AdminStudio is already activated. However, newer activation requests can no longer be fulfilled.
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AdminStudio Blog: Decommissioning of InstallShield Activation Service