Mouse.ini -

In Bethesda titles, "mouse ini" changes are often part of larger files like SkyrimPrefs.ini or Fallout4Custom.ini . Players frequently create or edit these to:

Used by tools like xboxdrv to map gamepad inputs to mouse movements. mouse.ini

Streamers use mouse.ini within specific "skin" folders for input-overlay software. In Bethesda titles, "mouse ini" changes are often

Are you trying to in a specific game (like Skyrim or Fallout)? Are you using a streaming overlay that requires this file? In Bethesda titles

Inside game directories (e.g., Skyrim , Fallout 4 ) to override default engine input settings.