'Could not find an authorization. Please contact your reseller of Plugsound for further information.'

If you receive this error, this means you need to run your recording host (Sequencer or DAW) as an Administrator. 

Right-click your recording host (Sequencer or DAW) Icon in C:Program Files (or from a valid Shortcut) and select the "Run as Administrator" option

Then authorize Atmosphere or Trilogy once again, and the authorization will be completed.