This is the most reliable and recommended method for all Steam games. This command forces Steam to scan every file associated with the game and download fresh, original copies of any that are missing or corrupted.

The steam-api.dll file acts as a bridge between the game engine and your Steam application. When this file goes missing or becomes unreadable, the game's executable ( CoJ_Gunslinger.exe ) fails its security and initialization checks, leading to an immediate crash. The most common causes for this error include:

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call of juarez gunslinger steam-api.dll