Within your program, if you click "Help" - "Activate additional functions" - "Activate MPEG2", the activation dialog will open. Choose "Order activation code online". A browser window will open - if you haven't registered yet, you can kill 2 birds with 1 stone by entering your serial number, your Magix registered email and password to get the code. Otherwise, if you've already previously registered, you can just enter your email and password (and not serial number). The code gets emailed to your registered email address. You can then copy and paste it into the activation dialog.

If you need the computer ID code because your computer is offline, in the activation dialog, you choose the offline option via post/fax. Your ID code will be displayed there.