The MS Gameport Joystick Controller is a legacy driver used in Windows for controlling and interacting with game controllers, particularly those that connect via a game port (also known as a joystick port). The game port was commonly used in older PCs for connecting devices like joysticks, gamepads, and steering wheels before the widespread adoption of USB peripherals.

This driver is typically associated with older Microsoft hardware or standard game ports found on legacy sound cards, such as the Creative Labs Sound Blaster series. Over time, the game port became obsolete in favor of USB-based controllers, but the MS Gameport Joystick Controller driver may still be required for older devices on systems that support them.