ActiveReports .NET provides a trial version to experiment and evaluate all features of Professional Edition for a total of 30 days without a product key. To completely use the benefits of ActiveReports for production, you need to upgrade the license from trial to purchase, which can be done by purchasing a product key (Standard or Professional Edition). After purchasing the license, the user can activate the key using MESCIUS License Manager. For detailed steps, refer to the Licensing a Developer Machine topic.