Here’s a concise, shareable write-up you can use for the error "Black Ops 2 cannot create steam-api.dll":

That’s it. No sketchy DLL download sites. No registry cleaners. Just a simple permission fix.

Ensure your antivirus hasn't deleted the plutonium.exe or the associated DLLs.

  • Open Steam and go to Library.
  • Right-click on Black Ops 2 and select Properties.
  • Click on Verify Integrity of Game Files.
  • Steam will scan and repair any corrupted files.

Your antivirus is likely the culprit if the file keeps "disappearing." Open your security software (e.g., Windows Security). Go to Virus & threat protection > Manage settings. Scroll to Exclusions and select Add or remove exclusions. Add the entire Black Ops 2 game folder to this list.

Pro Tip: If you cannot find the file in quarantine, it may have been deleted. Disable your antivirus temporarily and run the next fix (Verify Files).

If you're experiencing issues with Black Ops 2 being unable to create the steam-api.dll file, try the following troubleshooting steps:

  1. Verify Steam Integrity: Ensure that your Steam client is up-to-date and that the game files are intact. Right-click on Black Ops 2 in your Steam library, select "Properties," then go to the "Local Files" tab and click "Verify Integrity of Game Files."
  2. Update Steam: Make sure your Steam client is updated to the latest version. Sometimes, an outdated Steam client can cause issues with game files.
  3. Run Steam as Administrator: Right-click on the Steam executable, select "Run as administrator," and then launch Black Ops 2 from within Steam.
  4. Check for Corrupted Game Files: If the issue persists, try deleting the "steam-api.dll" file (if it exists) and then restart Steam and Black Ops 2. This will force Steam to re-download the required file.
  5. Disable Antivirus Software: Temporarily disable your antivirus software to ensure it's not interfering with the creation of the steam-api.dll file.
  6. Reinstall Black Ops 2: If none of the above steps work, try reinstalling Black Ops 2. This will ensure that all game files, including the steam-api.dll file, are recreated.