Verify the information in the license file is accurate

Last Published: April 25, 2020


The ArcGIS License Manager requires that the license file information be appropriate for the system and that it matches the information sent from the ESRI Keycode Department.


  1. The license files for ArcGIS are located in C:\Program Files\ESRI\License and end with a '.lic' file extension. The Arcinfo.lic file looks similar to this:

    SERVER server1 ESRI_SENTINEL_KEY=37123456 27005
    FEATURE ARC/INFO ESRI 8.01 01-jan-00 1 3BFE602241F669DB9349 \
    vendor_info="8DCZFL5B5R6D6RH8L023" ck=15

  2. The second entry on the SERVER line is the hostname of your computer. Make sure the hostname entry matches the actual hostname of the system (see step 1). The hostname entry is not tied to your keycode, and may be changed as long as it matches the hostname of the system that runs the license manager.
  3. The third entry on the SERVER line is the Sentinel Key number. This number should match the number returned by running Start > Programs > ArcGIS > License Manager > Display Hardware Key Status. Occasionally, the number printed on the Sentinel Key does not match the number returned by checking 'Display Hardware Key Status'. In this case, use the number returned by 'Display Hardware Key Status' to request new licenses.
    Notice this number always starts with a '3'. For example, if the e-mail tool used is Microsoft Outlook with Microsoft Word as the e-mail editor, all instances of '=3' will be stripped from the license file(s), as '=3' is a special Microsoft Word programming code. In such case, edit the license file(s) to restore the '=3'.
  4. The last item on each FEATURE line is the checksum number. The checksum number can also be stripped of a '=3'. The entry should contain 'ck=' followed by a number. If the equal sign is missing, the number three will also be missing. In such case, edit the license file(s) to restore the '=3' in the checksum number.

Article ID:000001797

  • ArcMap 8 x
  • ArcMap 9 x
  • Legacy Products

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