Activate your GRE license from the command line (via internet)
If a Genero Report Engine (GRE) license has been installed, you can activate it using the command greWrt -k auto. The license is registered with Four Js via the internet and the installation and maintenance key is installed.
Internet is required
        Before you begin: Internet access is required to activate the license; a temporary installation does not require internet.
The license must be installed but not yet activated.
Important: 
        If your installation directory is in the C:\Program Files path, you must run as administrator when you license the product. This avoids any permission issues.
Note: 
There is no need to run greWrt -m auto to install the maintenance or
subscription key.