For the web app or remote services applications, you must set the TELELOGIC_LICENSE_FILE environment variable on your application server.
For the desktop applications, the TELELOGIC_LICENSE_FILE environment variable is set either when you enter the license server path during the installation of Rational® Publishing Engine or when you start the Document Studio or Launcher applications for the first time.The default format for the license server path in the environment variable is port_number@hostname. See the documentation for your operating system or application server for more specific information about creating and managing environment variables.