Are you seeing a (like 0xc000007b) alongside the missing DLL message?
Modern antivirus software—including Windows Defender—is often overly aggressive. It may flag steam-api64r.dll as a "false positive" and move it to quarantine, effectively "deleting" it from the game folder. Open your Antivirus or Windows Security settings. Navigate to Protection History or Quarantine.
Go to your Steam installation folder (usually C:\Program Files (x86)\Steam). call of duty infinite warfare steam-api64r.dll missing
If the file is missing from multiple games or the verification process keeps failing, the issue might reside within the Steam client itself rather than the game files. Close Steam completely.
Download the latest DirectX End-User Runtime from the official Microsoft website. Are you seeing a (like 0xc000007b) alongside the
Call of Duty Infinite Warfare steam-api64r.dll Missing Fix Guide
One of the most frustrating hurdles when launching Call of Duty: Infinite Warfare on PC is the "steam-api64r.dll was not found" error. This specific dynamic link library file is a bridge between the game and the Steam client, ensuring your license, achievements, and cloud saves sync correctly. When it goes missing, the game simply refuses to boot. Open your Antivirus or Windows Security settings
The most reliable way to fix a missing DLL is to let Steam scan your installation for discrepancies. Steam will automatically detect the missing file and download a fresh, official copy. Open your Steam Library. Right-click on Call of Duty: Infinite Warfare. Select Properties from the menu. Click on the Installed Files tab. Select Verify integrity of game files.