unattended installation - License can't be imported


We're deploying TV.msi and the settings over .reg with GPO.

The settings are correctly imported - except the license key.

Importing the settings over TV GUI shows the same behavior.

Starting TV as administrator and importing the settings does work.

The GPO is a computer policy and is linked to computer objects.

So the installation must run in system context. But if so, the .reg file should also be taken over in system context and there should not be a problem by setting the license reg key.

However it does not work. Any ideas?