Right-click the in your Windows taskbar tray and select Sound settings (or open the Control Panel and go to Sound).
Are you experiencing this error with a specific , and have you recently updated your Windows version or audio hardware ? Call Of Duty Exe Err Mss Init Failed Mp.epub - Facebook
Go to the tab and check "Run this program as an administrator" . Click Apply and try launching the game. 2. Verify Game Files (Steam/Battle.net)
The is a frustrating error that has plagued multiple iterations of the Call of Duty franchise, ranging from classic titles like Call of Duty 2 to modern entries within the Call of Duty HQ launcher, including Modern Warfare III and Warzone . This error typically appears during game initialization, signaling a failure in the Miles Sound System (MSS) —an audio middleware component—to initialize properly, which consequently prevents the game's executable ( .exe ) from starting.
Are you trying to play Call of Duty? Does a scary box pop up instead? Does it say "exe err mss init failed 150"? You are not alone. This error stops the game from opening. It usually means your computer cannot load the game's sound files.
Steam.dll is directly present in the root folder if launching via a digital store.
The mss32.dll file is the main driver for this audio system. The error occurs when this file is missing, corrupted, or when the system cannot properly communicate with your sound hardware. This can happen after a Windows reinstallation, driver updates, or even if an antivirus program mistakenly quarantines the game's DLL files, thinking they are malicious.
Silence on the line. Then, a third voice cut in. It was Private Kowalski, the squad’s tech-head. "Say that again? MSS Init?"
It is frustrating. It is obtuse. But it is also fixable. Once you lower your sample rate and resurrect that DLL, the game will finally open its mouth again. You’ll hear the lobby music. The click of the safety. The thump of the drop ship.
How to Fix "Call of Duty exe err mss init failed 150" Error (2026 Guide)
This is nuclear, but effective for persistent Error 150. This disables a Windows audio protection feature that sometimes blocks legacy games.
Run the executable and extract the files to a temporary folder on your desktop.
Sometimes your current user profile has corrupted sound permissions.
This comprehensive troubleshooting guide breaks down the core causes of this error and provides technical solutions to bypass the crash on modern Windows operating systems. Root Causes of the Error