How does the license manager work?

When you open one of the software applications, the appropriate license will be ‘checked out’ from the license manager that you are currently using.

For example, you have installed ArcEditor on your machine. When you open the ArcMap application, an ArcEditor license is checked out from the license manager. When ArcMap is closed, the ArcEditor license becomes available for another user. You can open as many ArcMap application windows as you want on your local machine and you will only be checking out one ArcEditor license. You may open any of the other ArcEditor applications on your machine (e.g. ArcCatalog or ArcToolbox) simultaneously and use the same license.