In Parallels Business Automation - Standard, a License is a file that contains specific data.
For Parallels Business Automation - Standard tools to work the Parallels Business Automation - Standard license file is needed on the Management Node. This license can be easily installed via the Parallels Business Automation - Standard Provider Control Center web-based interface.
Note: The trial Parallels Business Automation - Standard licence is shipped together with the Parallels Business Automation - Standard distribution.
And to provide hosting services, the licenses that are specific for each hosting type (Virtuozzo, Plesk) should be installed on appropriate Hardware Nodes.