If you are playing a modified or hacked version of "Modern Warefare 2," you can test your new patch using a program called alterIWnet. If you have written a custom patch for the PC version of the game, you can test it in online play before fully loading it into the client. Once you have your new patch set up, you can open multiplayer via alterIWnet and test your patch on a private server.
Instructions
1. Open AlterIWnet, select your nickname and press "Save."
2. Open Modloader, then select ".ff Viewer."
3. Select the patch you wish to test, then copy the code.
4. Open your "Modern Warfare 2" folder and create a folder named "MyPatch." Create a folder by right-clicking and selecting "New," then "New Folder."
5. Open the folder you just created and create two sub-folders named "mp" and "Gametypes," respectively.
6. Open the Gametypes folder, then right-click and select "New" then "Text Document." Name the document anything you wish.
7. Rename the file extension from ".txt" to ".gsc." Click "yes" to confirm the change.
8. Right-click the .gsc file you just created, then click "Open With" and select "Wordpad."
9. Paste the code you copied in Step 3, then pres CTRL+S to save the file.
10. Open the "MW2_Modder.ini" file in Wordpad.
11. Change "Mod0" to "Mod0=MyPatch."
12. Change "CurrentMod "1" to "CurrentMod=0."
13. Open the "Modern Warfare 2" folder, then right-click "config_mp.cfg" and open it in Wordpad.
14. Change "r_fullscreen "1" to "r_fullscreen "0," then save your changes.
15. Open alterIWnet, then load "Modern Warfare 2."
16. Open LoaderX.in Modloader.
17.Tab over to "Modern Warfare 2," then click "Play," then "Private Match," then "Start."
18. Click "Auto Inject" in ModLoader while the level is loading. This will load your custom patch and allow you to test it in a private server.
Tags: Modern Warfare, your patch, custom patch, folder then, folder then right-click, just created