Mouse.ini -

If a game or application cannot save your mouse settings, the .ini file may be set to "Read-Only" in its properties.

Setting bMouseAcceleration=0 to ensure a 1:1 movement ratio. mouse.ini

Streamers use mouse.ini within specific "skin" folders for input-overlay software. If a game or application cannot save your

On Linux, a file named xboxdrv-mouse.ini is used to make a gamepad act as a mouse. mouse.ini