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CatWalk XT 11 - Installation - 2.2 Your CatWalk License

Last updated: Jul 26, 2026

2.2 Your CatWalk License

Types of CatWalk XT License

Your CatWalk XT license is stored on a hardware key (also known as a dongle) or in a software form (software license key). In all cases, to know which add-on module you have, choose Help > About CatWalk XT, then click the License Info button. Enabled modules are marked with a checkmark.

License on a Hardware Key

Your CatWalk XT software comes with a hardware key, which determines which functionalities are available. This is a very important piece of equipment, as it is your license and will not be replaced free of charge. Please keep this in mind and make sure that you do not lose the key. You will need to pay for a new license if you do so.

  • The driver for the hardware key is installed automatically when you install CatWalk XT. To make sure that the driver is installed, open Programs and Features in the Windows Control Panel. If the driver is installed, you should see an item named Sentinel Runtime (version 8.11).
  • To reinstall the driver of the hardware key, run the installation of CatWalk XT 11 and select Repair.
  • First install the CatWalk XT software and then connect the hardware key to your computer, not the other way around.
  • Your CatWalk XT software can only acquire data if the hardware key is plugged into your computer. If the hardware key is not plugged in, you can open existing experiments, analyze data, and classify runs.
  • In order to use the full functionality of CatWalk XT on two computers, you must move the hardware key from one computer to the other.
  • If the hardware key is not plugged into your PC or the software license is not activated, you can still start CatWalk XT and work in unlicensed analysis mode. This means that you can analyze and visualize previously-recorded data, but cannot acquire more data.

Upgrade the Hardware Key

When you upgrade from a previous version and start CatWalk XT for the first time, the system automatically detects the hardware key and asks you to type the Upgrade Key in the Upgrade Key window box. This number is normally sent to you by email or in your welcome letter.

Software License Key

A software license key allows you to use CatWalk XT without a hardware key plugged into your computer.

Your software license key is coupled to the hardware of your computer, not to a specific user or user group name.

A software license can be of two types:

  • Fixed. This type of license is meant to be used on a specific computer. The fixed license is associated with that computer, and this association is registered on the Noldus Server. In order to re-use a fixed license on another computer, you must first deactivate that license on the computer where it is currently active.
  • Floating. This type of license is meant for when you want to use CatWalk XT to acquire runs on two or more computers, though not simultaneously.
    • If you acquire runs on the same computer in the lab and want to analyze or visualize data on your office computer, a floating license is not needed. You can activate a fixed license on your lab computer to acquire data, while using CatWalk XT in unlicensed analysis mode in your office.
    • With one floating license you can work on one computer at a time. Make sure that CatWalk XT is closed on all computers other than the one you are currently using.
    • In order to work with a floating license, your CatWalk XT computer must be connected to the internet. When you close CatWalk XT on one computer with a floating license, the license is automatically deactivated, provided the computer is connected to the Noldus Server. At that point you can use CatWalk XT on another computer.

See Also

  • The End-User License Agreement.
  • The Acknowledgments and Copyright Notices.
  • Legal documents stored at: C:\Program Files\Noldus\CatWalk XT 11.0\Documentation\Legal

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