Paper stickers fade. If you find your old case, try holding it under a bright light. If the ink is smudged or missing, you might have to resort to the options below.
Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Activision\Call of Duty United Offensive (or WOW6432Node on 64-bit systems). Look for a string value named . 2. Digital Platforms (Steam/GOG) If you purchase the game digitally today: cod united offensive cd key
If you don't have your original discs, the easiest way to play is by purchasing a digital . Paper stickers fade
: Keys from physical retail copies generally cannot be redeemed to activate the game on Steam . Where to Buy Digital Platforms (Steam/GOG) If you purchase the game
For players who have lost their physical key but still have the game installed, the key is stored locally in the Windows Registry