You need iKlax Player. If you don't have it yet, you can download it on www.iklaxmedia.com.
Step2
Once you have downloaded an iKlax file (for instance on iklaxmusic.com), double click on the file. The iKlax Player is now open with your song ready to play. Push the "Play" button.
Step3
Use the window on the right of the player to intarct with the music: - Mute a track by clicking on the green button. - Save your iKmix by clicking on "MX". - Play with volumes using the faders. - Leave the player improvize by clicking on the bottom right button.