: Many antivirus programs, including Windows Defender, may quarantine the steam_api.dll file, especially if it has been modified or is part of a repack.
Click . Steam will automatically detect and redownload the missing .dll file. dishonored steamapidll is missing
Stick to Method 1 (Verify Integrity) first; it fixes the issue 99% of the time. : Many antivirus programs, including Windows Defender, may
: If you must download the file manually, only use reputable sources like DLL-files.com . Copy the file into the Dishonored Binaries\Win32 folder (usually located in SteamApps\common\Dishonored\Binaries\Win32 ). steam_api.dll free download - DLL-files.com : Many antivirus programs
Once done, restart your PC and launch Dishonored through Steam. The error will be gone.