Call Of Duty Exe Err Mss Init Failed 150 ✨

Third-party software overlays (Discord, GeForce Experience) blocking necessary game files. Step-by-Step Fixes for Call of Duty "mss init failed 150" 1. Basic Troubleshooting Steps Before attempting advanced fixes, start here:

Right-click on the game's executable ( .exe ) file or its desktop shortcut and select "Run as administrator." This ensures the game has the necessary permissions to access all required system files and hardware resources.

The "mss" in the error stands for Miles Sound System. This is the software Call of Duty uses for audio. Reinstalling these files can fix the bug. Go to your main . Look for a folder named Miles . Delete the Miles folder. Open Steam or Battle.net. Run the Verify or Scan and Repair tool again. The launcher will download fresh, clean sound files. To help me give you the best fix, could you tell me: Which game launcher do you use (Steam or Battle.net)? Did this error start after a recent game update ? What brand of headphones or speakers do you use? Call of duty exe err mss init failed 150

Before diving into the fixes, it helps to understand why this happens. The error typically occurs when the game attempts to initialize the audio engine but fails. Common causes include:

Right-click the game > Manage > Files > Verify and Repair . 3. Reinstall or Reinstall Game Components If verification fails, specific modules may be broken. The "mss" in the error stands for Miles Sound System

Reinstall the game

Right-click the game executable (e.g., cod2.exe or cod2mp_s.exe ). Go to your main

Windows includes a built-in tool to scan for and repair corrupted system files.

This specific crash most commonly impacts classic and remastered PC titles in the franchise, such as Call of Duty 2 , Call of Duty 4: Modern Warfare , Black Ops 2 , and Modern Warfare 3 . When the executable launches, it checks for active audio endpoints and driver signatures. If the audio driver is missing, a playback device is unplugged, or the core .dll files are corrupted, the engine throws error code 150 and terminates immediately. What Causes the "exe_err_mss_init_failed_150" Error?

the files directly into the root folder alongside the main .exe file. Phase 2: Resolving Sound Device Conflicts

: The classic Call of Duty engine will crash silently or throw an MSS init failure if it detects that no speakers, headphones, or microphones are plugged into the system.