Before using the license key, please make sure that you have downloaded and installed CTE version 10 from http://cte.oeaw.ac.at/?id0=download
1. Exit the CTE software if it is open and running.
2. Run the basic license key executable on the machine with CTE installed. You can usually run the executable by double clicking its name. The executable will ask you to fill in your email address and submit.
3. After you have completed the process, a permanent license executable will be sent to the license manager who will then send it to you.
4. Once you receive the permanent license executable, please run it. You can usually run the executable by double clicking its name.
5. Save the permanent license executable to a safe location. You may need it in the future if you need to reinstall the software.
6. You are finished. If the license was installed correctly, you will not see the "Buy now" in the lower right corner when you open CTE.