I have an original, NIB Version of BOS Operation Barbarossa, that is intended to be an Add-on module for IL-2, or Forgotten Battles. Bought it a long time ago, and just re-discovered it. I have installed a playable version of IL-2. When I try to install my BOS OB, the message appears that "Additional Permissions Required", and nothing happens thereafter. Tried installing BOS OB module as Administrator, but no joy.
ETA, misidentified the add-on module. Correct title is Operation Barbarossa. Sorry.
I should add that I have a fully updated version of IL 1946. I wonder if the content in OB is included in 1946.
Last edited by RIBob; 08/31/18 08:11 PM.