Call Of Duty Infinite Warfare Steamapi64rdll Missing Work Instant

The "SteamAPI64.dll missing" error typically occurs due to:

Follow these methods in order to resolve the missing DLL error. 1. Verify Integrity of Game Files on Steam

Are you running a or a modified version of the game?

Once completed, restart your computer and test Infinite Warfare again.

typically occurs when your antivirus software incorrectly flags and quarantines the file as a "false positive".

If antivirus isn’t the culprit, Steam may have failed to download or update the file correctly.

If this file is missing, the game assumes you are trying to bypass Steam and shuts down immediately.

The steam_api64.dll (Dynamic Link Library) file is a critical component developed by Valve for the Steam platform. It acts as a bridge between a game—in this case, Call of Duty: Infinite Warfare —and the Steam client itself.

Back up your Steam user data, then uninstall the Steam client itself.