If the error started right after you installed a new antivirus or ran a scan, the DLL is likely quarantined.
If you recently installed the game or an update, your antivirus might have snatched the file. Open your Antivirus software (or Windows Security). Look for the Quarantine or Protection History section. download steam api.dll for resident evil 6 pc
If your goal is legitimate (e.g., fixing a missing/corrupt steam_api.dll for a legally purchased Resident Evil 6 on PC), here are safe, lawful options you can follow: If the error started right after you installed