# Types of EthoVision XT license

There are two main types of EthoVision XT license:

▪License on a hardware key

▪Software license key

In all cases, to know which modules your license has, choose Help > About EthoVision XT > License Info.

License on a hardware key

Your EthoVision XT license is stored on a USB key. A USB key looks similar to a USB Flash drive, but does not include any disk storage space.

important Make sure that you do not lose the hardware key! You will need to pay for a new license if you do so. Please be careful with the hardware key. It is sensitive and can be easily damaged.

In order to use the full functionality of EthoVision XT on either one or the other computer, you must plug the hardware key in that computer.

Alternatively you can start EthoVision XT without a hardware key plugged in and work in analysis mode to analyze the trials already acquired but not acquire new trials. See EthoVision XT in analysis mode

Software license key

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

important 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: Computer-locked and Floating.

Computer-locked license

This license is meant to be used on a specific computer for long time. It is a fixed-seat license associated with that computer. This association is registered on the Noldus Server.

In order to use a computer-locked license on another computer, you must first deactivate that license on the computer where it is currently active. See Deactivate an EthoVision XT license

Floating license

This license is handy when you want to use EthoVision XT to acquire data and video on two or more computers (though not simultaneously).

▪example Activate a floating license on two computers: one in the lab for recording video, and one in the office to acquire the tracks from the resulting video files.

▪If you always record data/video on the same computer in the lab and analyze/visualize data on your laptop in the office, a floating license may not be needed. You can activate a computer-locked license on your lab’s computer to acquire data and video and install EthoVision XT and use it in Analysis mode in your office (see below). See EthoVision XT in analysis mode

▪With a floating license you can work on one computer at a time. Make sure that EthoVision XT is closed on the computers other than the one you are using at that time.

▪important In order to work with a floating license, your EthoVision XT computer must be connected to the internet. When you close EthoVision XT on one computer with a floating license, the license is automatically deactivated, at the condition that the computer is connected to the Noldus Server. At that point you can start using EthoVision XT on another computer.

▪With a floating license you can work offline with EthoVision XT for a maximum of 90 days. After that, you must re-connect the EthoVision XT PC to the internet in order to continue to work with the software or to deactivate the license and make it possible to use the license on another PC.

Notes

▪If the hardware key is not plugged in your PC or the software license is not activated, you can still start EthoVision XT and work in Analysis mode. This means that you can analyze and visualize previously-recorded data, but cannot acquire more data. See EthoVision XT in analysis mode

See also

▪Activate your EthoVision XT license

▪Modules of EthoVision XT