With the changes to our licensing system this year, the licence activation process is slightly different. For most customers your licence now expires on the 31st of December. You can check the expiration date of your licence by starting Mercury, click Help > About Mercury. In the new window that appears, scroll down until you see your expiration date.

If you are using a node-locked activation key on a machine that is connected to the internet, there is very little required of you. If you believe that the expiration date should have been extended, close and restart Mercury. Your machine will sync with our license server and update your licence details if you have renewed your licence. If your expiration date is still the same, please check with your site contact to determine the status of your renewal. Information on accessing the latest release can be found here.

If you are unable to start Mercury because a message appears that your licence has expired, you will have to reactivate it using the ccdc_activator tool (we hope to fix this bug in the next release). More details on how this is done can be found in the CSD Portfolio Release and Installation Notes. If activation has been set up for all users, you can either manually reactivate for each user or delete their locally stored activation info to trigger a re-run of the automated silent activation. The location of the locally stored activation info depends on the operating system:

  • Windows: In the Registry in HKCU\SOFTWARE\CLASSES\csetz
  • Linux: ~/.local/share/data/bconf/data.conf
  • MacOS: ~/Library/Application Support/iConf/data.conf

If you have renewed your licence but your machine is not connected to the internet, then you will need to either connect to the internet and follow the steps above or perform an offline activation using the software activation tool to generate a request.

If you have set up the software to use a local licence server, the activation steps can be found here.

Note that it is important to check with your site contact on the renewal status first. If you have followed the steps above and still require assistance, do contact us at

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