However, this distinction has historically caused confusion, particularly regarding DayZ mod compatibility. As one community member clarified on the DayZ forums:
As a legacy game, buying a brand new physical copy might be difficult, but digital codes are still available. 1. Digital Resellers (Third-Party Sites) arma 2 reinforcements cd key
This is often resolved by wiping the registry clean. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Bohemia Interactive Studio\ArmA 2 (or the specific expansion folder). Export your current KEY to back it up, then modify the KEY value to all zeros ( 00,00,00... ). Install the patch with the nulled registry, then re-import your original key afterwards. this distinction has historically caused confusion
Complete Guide to Arma 2: Reinforcements CD Keys and Troubleshooting arma 2 reinforcements cd key