Native Instruments TRAKTOR KONTROL Z2 - 2+2 Channel Control Mixer - Manual (Page 31)

3.3.5 Open the Activation Return File
The offline activation screen of Service Center.
1. On your audio computer, start Service Center again. In the Continue without connection to
the internet area at the bottom of the screen, click Offline .
2. Select the Activate tab and click Open to load the Activation Return file.
Product Activation With Service Center
Activating Your Product Offline
TRAKTOR KONTROL Z2 - Setup Guide - 31