• Hor+ FOV: Correctly extends your left and right view instead of losing top and bottom
  
• Unstretched HUD: Crosshair and other ingame UI don't look squished or oval
  
• Weapon position: Held weapons don't sit below the screen at wider resolutions

• Singleplayer ✔
  
• Multiplayer ✔ except servers running mutators forcing their own custom HUD
  
• Instant Action ✔

21:9 ultrawide (left: 3 boxes and shield pickup visible with SetFov 100)

16:9 widescreen (left: 3 boxes visible with SetFov 100)

4:3 fullscreen (left: 2 boxes visible with SetFov 100)

1. Extract foxWSFix.u to UT2004's System folder where UT2004.exe is located
   
   C:\UT2004\System\foxWSFix.u
   
   
2. In the same folder, open User.ini and replace all instances of InputClass=Class'Engine.PlayerInput'
   with InputClass=Class'foxWSFix.foxPlayerInput'
   
   [Engine.PlayerController] ... InputClass=Class'Engine.PlayerInput'
   [UnrealGame.UnrealPlayer] ... InputClass=Class'Engine.PlayerInput'
   ↓
   [Engine.PlayerController] ... InputClass=Class'foxWSFix.foxPlayerInput'
   [UnrealGame.UnrealPlayer] ... InputClass=Class'foxWSFix.foxPlayerInput'
   
   
3. In the same folder, open UT2004.ini and replace all instances of GUIController=GUI2K4.UT2K4GUIController
   with GUIController=foxWSFix.foxUT2K4GUIController
   
   [Engine.Engine] ... GUIController=GUI2K4.UT2K4GUIController
   ↓
   [Engine.Engine] ... GUIController=foxWSFix.foxUT2K4GUIController
   
   
4. If your widescreen or ultrawide resolution doesn't show in the video options, you can activate it manually by opening the console with the ~ key and use the SetRes command
   
   SetRes 3840x2160