Connect your controller to your PC via USB or Bluetooth.Step 2: Enabling Controller Configuration Support Then, IW4x has been added to your Steam library and can be launched at any time from within Steam.Now there should be a tick in the box next to iw4x, now simply click the button 'ADD SELECTED PROGRAMS'.In the browse file window, locate your IW4x install and select 'iw4x.exe', then click the 'Open' button.Select the option 'Add a Non-Steam Game.'.Launch Steam and click the text in the bottom left that says ' ADD A GAME'.Step 1: Adding IW4x to your Steam library. This guide will cover using Steam's Big Picture mode, which has this feature built in.
As MW2 on PC does not natively support controllers, we must use external programs to make a controller emulate keyboard and mouse inputs.
