Issue â€“ You may receive an â€œiw3mp.exe has stopped workingâ€ error message when you launch the multiplayer portion of the Call of Duty 4 game. Soon after you receive the exe error, your game might crash.
Resolution tips â€“ You may use the following resolution steps to fix this exe error.
Tip #1 â€“ Uninstall And Then Reinstall Game
Use the built-in game uninstaller, Windows Add or Remove Programs utility or a third-party program uninstaller utility to uninstall Call of Duty 4. Next, restart your computer and reinstall the game.
Tip#2 â€“ Update Your Sound Drivers
In case the problem persists after reinstallation, then update your sound drivers. If you are using Windows Vista and RealTek (TM) onboard sound cards then you must use Microsoft Audio Drivers 6.0. In case you are using Windows Vista with Sigmatel onboard cards then install the latest Sigmatel drivers, as well as all Windows Vista updates.Â You can update your sound drivers manually or automatically using a driver update program.
Tip #3 â€“ Enable Stereo Mix
If you use Windows Vista with RealTek sound drivers, it might be possible to fix this error by enabling Stereo Mix. To do this, perform the following steps:
- Click the Windows icon on your taskbar, and then click Control Panel.
- Double-Click Sound.
- Click the Recording tab.
- Right-click in the Sound dialog box, and select Show Disabled Devices.
- Enable the Stereo Mix.
- Click Apply, and then click OK.
Tip #4 â€“ Change The Default Audio Device To Microphone
Change the default audio device of your computer to microphone and use a microphone while playing the game.
Here are the steps you need to perform to change the default audio device to microphone.
- Right-click the sound icon on the system tray.
- Select Recording Devices.
- In the Sound dialog box, click the Recording tab.
- Right-click Microphone, and then select Set as Default Device.
- Click Apply to save your changes.
- Click OK.
Tip #5 â€“ Change The Mssmp3.asi File Name
To do the Mssmp3.asi file, perform the following steps:
- Open Windows Explorer.
- Browse to C:\Program Files\Activision\Call of Duty 4 – Modern Warfare\miles\ folder.
- Locate and right-click the mssmp3.asi file.
- Click Rename, and rename the file to mssmp3.old.
Exe files are prone to virus attacks. Therefore, if the above methods fail to fix the iw3mp.exe error, it is recommended that you perform a thorough malware scan on your entire computer using a robust anti-malware program. If the error is due to a malware or virus infection, your anti-malware tool should be able to detect and fix the issue.