For users running Dragon Age: Origins version 1.05, particularly on PC (Steam or GOG), the best approach to "training" or cheating is using the native Developer Console, rather than external trainers which often break or cause crashes in higher patch versions. Patch 1.05 fixed significant lag issues related to DirectX10-era cards, so maintaining this version is highly recommended.
Launch Order: Typically, users must launch the trainer first, then the game, or vice versa depending on the specific trainer's instructions. Dragon Age Origins 1.05 Trainer
: Ensure your game launcher (Steam, GOG, or EA App) actually says For users running Dragon Age: Origins version 1