'Key is already in use within another app' error

Your Premium Key can only be used in one DVDVideoSoft application.

You've already selected the application and used the key there. Now you're trying to use your key in another application.

You will need to launch the app you first activated. 

Please note:

• Free YouTube Download and Free YouTube to MP3 Converter are two different applications.
• You can't use the same key on different operating systems.

If you have activated the wrong application, please contact our support team.

Don't forget to mention your Premium Key.