What is xinput1 3.dll file?

The xinput1_3.dll file is a dynamic link library associated with Microsoft DirectX, specifically the XInput API, which is used for handling input from Xbox controllers and other gamepad devices in Windows. It facilitates communication between the hardware and software, enabling games to recognize and respond to controller inputs. If this file is missing or corrupted, it can lead to issues with game performance or functionality on systems that rely on XInput for controller support.