Check your or Protection History to see if steam_api.dll was already removed; if so, select Restore . 3. Verify Game Integrity If you are using the official version on Steam: Steam_api.dll errors and how to fix it - ThinkMobiles
Your antivirus is likely the culprit if the file keeps "disappearing." Open your security software (e.g., Windows Security). Go to > Manage settings . Scroll to Exclusions and select Add or remove exclusions . Add the entire Black Ops 2 game folder to this list. black ops 2 cannot create steam-api.dll
: A background process (like a previous crashed session of the game) might still be using the file, preventing the system from creating or updating it. Check your or Protection History to see if steam_api