The License Key
Before you install Integration Server, you are provided with a license key file that you place in the file system of the machine on which Integration Server will run. This file contains your license key, which is a special code associated with your license.
When you install Integration Server, the setup program asks you to provide the name and location of this file. The setup program then copies this file to the Integration Server_directory \instances\instance_name\config directory with the name licenseKey.xml. If this file is inadvertently deleted, Integration Server reverts to demo mode. In this mode, there are only two licensed sessions and the server automatically shuts down 30 minutes after it is started.