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Launcher command line arguments

Command line arguments, or short CLI Args, are used to tell a program to do a specific task or behave in a certain way.
Arguments generally override values set in the launcher config - but they don’t get saved to it.

You can create a shortcut of the IW4x Launcher by right-clicking it and selecting “Create shortcut”. You can then right-click the shortcut, select properties and append the arguments in the Target field like this:

E:\iw4x\iw4x-launcher.exe --help
ArgumentDescription
-p, --path <PATH>Game install path, usually in steamapps/common/Call of Duty Modern Warfare 2
-c, --config <CONFIG>Custom config path, default is /launcher/config.json
-u, --updateUpdate only, don’t launch IW4x
-f, --forceForce file re-check
--args <ARGS>Arguments passed to the game, default is -stdout
--skip-self-updateDon’t update the launcher
--ignore-required-filesDon’t check for required game files
--skip-connectivity-checkDisable CDN rating and use default CDN
--offlineRun in offline mode
--testingInstall from testing branch (IW4x & Launcher)
--rateRate CDN servers and print results
--cdn-url <CDN_URL>Specify custom CDN url
--disable-artDisable ASCII art
--dxvkInstall DXVK for better AMD performance
-h, --helpPrint help
-V, --versionPrint version

If you’re having trouble with CLI args, you can join our Discord server for help!

Discord Server