TAC License server can't be started


TAC License server can't be started.

TAC license server crashes

Product Line

TAC Vista


TAC Vista 5.1.8


The license server can't start if there is a DEMO license in the same folder as the "real" license.

Note that in 5.1.8 the default path to the license files have changed to: C:\Program Files\Schneider Electric\License Server\TacLic\Licenses

Any license files that are in the old directory will be moved to the new one when upgrading. If you need to use DEMO licenses for a site you can add them to a separate directory and add that directory in the license setup.


  1. Delete any DEMO licenses in:
    C:\Program Files\Schneider Electric\License Server\TacLic\Licenses
  2. Go to services and start TACLicenseServer