Configuring the license manager with the use of %localhost%. Adding this to the definition of ESRI_LICENSE_FILE works for windows to recognize the name of the PC. Using this method bypasses the need to type each individual computer name in the environment variables field.

Ex/ ESRI_LICENSE_FILE = %localhost%@server1@server2

So, if the local host doesn't have a hardware key (dongle) attached than it knows to look on server1 followed by server2. Feel free to call if there are further questions. The following link is from the USFS license manager configuration document . (38KB WORD file)