How To: Check all references of computer hostname for license manager


The license manager checks several locations for the hostname. Performance can degrade when the hostname of the computer has changed without the license manager being reinstalled. In this situation the 'old' hostname may still be referenced in several locations.


The instructions below include making changes to essential parts of your operating system. It is recommended that you backup your operating system and files, including the registry, before proceeding. Consult with a qualified computer systems professional, if necessary.

Esri cannot guarantee results from incorrect modifications while following these instructions; therefore, use caution and proceed at your own risk.

    To check environment variables on NT, click Start > Settings > Control Panel > System and select Environment tab.
    To check environment variables on Windows 2000 click Start > Settings > Control Panel > System and select Environment tab.
    [O-Image] Environment Variables
  2. Check the *.lic files located under \program files\esri\license. There will be several .lic files corresponding to each individual feature. Also check to see if there is a license.dat located under \arcexe80\sysgen. Both of these files will reference the hostname:
    SERVER <hostname> ESRI_SENTINEL_KEY=37111602 27005
  3. Access the NT registry: click Start > Run. Type regedt32. Find the HKEY_LOCAL_MACHINE on the local machine window and navigate to:

    [O-Image] Windows 2000 Regisrty
    The Desktop reference is located at: