For ELinOS products up to version 4.2 a special activation technology to prevent unauthorized copying of the software is available. 

Please follow the listed steps to activate your products or manage your licenses:

1. Locate your contract information
   Together with your product shipment you received a shipping list or delivery document showing your order Reference.
2. Collect System Information
   Execute '/opt/elinos-<version>/bin/elinos-sysinfo' on your development system to generate a file named elinos_sysinfo.tgz.
   Note for Windows users:
   Windows users have to execute 'elinos-sysinfo' in the Cygwin terminal.
3. Request your product key
   Send the elinos_sysinfo.tgz file with the number of licenses requested to licensing@sysgo.com
4. Place your product key
   You will receive your product key via email. Copy your key to '/opt/elinos-<version>' (e.g. ELinOS v4.1: /opt/elinos-4.1/key) and start your application.

*Sessions: Sessions are non-personalized development-seats. Each session enables one user to work with the product concurrently with other users.