How to Play MW2 With the IW4x Client

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The IW4X Client does not require you to register on a forum so getting started is pretty easy.
  1. Make sure you have The Visual C++ Redistributable Package installed. Use the x86 version.
  2. Copy your Modern Warfare 2 game files to a new folder. (Steam version is preferred.)
  3. Delete everything except the folders "main", "miles", & "zone" and DO NOT delete the files: "localization.txt", "binkw32.dll", and "mss32.dll"

  4. Download the IW4X Updater HERE and place it in your root game directory.
  5. Run the updater and let it install the updated client files.
  6. Click iw4x.exe to start the game.
  7. On the main menu, set your player name
  8. Click "Join Game" and have fun.
For more info, visit the official IW4X site
Note: The IW4x site is hosted as a hidden TOR service. If it is down, just try again later.

NOTE: If you are interested in setting up your own server, see the instructions HERE.

IW4X includes the following features:

  • IW4x allows you to set up your own dedicated servers with modifications for Modern Warfare 2 on top of a decentralized network.
  • Dedicated servers with lobbies
  • No matchmaking, but dedicated and (Local LAN) listen servers
  • Fully offline playable LAN mode, including a server browser
  • Friends list (Steam required to be run in the background) [Currently Broken]
  • Cheat prevention measures
  • Theater mode
  • New weapons
  • New maps
  • New game mechanics
  • Mod tools to create your own custom content
  • and much more
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