Launch the ArcGIS Administrator and select the desired product folder (Desktop or Engine).Select a product and define a license manager Click Apply to set your changes without closing the ArcGIS Administrator or click OK to apply changes and close the ArcGIS Administrator.Click the top node in the table of contents.Borrow available concurrent use licenses.Select a product to use and define a license manager.Select the language to use for your ArcGIS Desktop and ArcGIS Engine environments.For setting up the single use environment, consult the ArcGIS Administrator Help, which can be accessed from the ArcGIS Administrator Help button. This help document only provides information regarding the concurrent use case. The ArcGIS Administrator allows you to define both the concurrent use and single use environments. On UNIX/Linux, the ArcGIS Administrator can be launched from the product installation location using the following command: If you would like to access it at a later time, you can launch it from Start > Programs > ArcGIS > ArcGIS Administrator. The ArcGIS Administrator utility is only installed with the ArcGIS Desktop, ArcGIS Engine Runtime, and ArcGIS Engine Developer Kit software and is launched after the installation of the software.