Install airfix dog fighter then after that click on update folder .Copy the file (AdPatch120_NOCD.exe) and paste it to where airfix DF is installed usually C:\Program Files\Paradox Entertainment\Airfix Dogfighter.Then after that click on it (AdPatch120_NOCD.exe) to apply update.extract all files to c:\Program Files\Paradox Entertainment\Airfix Dogfighter
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