Call Of Duty Exe Err Mss Init Failed 150 🎯

The "EXE_ERR_MSS_INIT_FAILED" error in Call of Duty (most commonly associated with Call of Duty 2, World at War, and Modern Warfare titles) occurs when the game fails to initialize the Miles Sound System (MSS). This is typically due to corrupted game files, outdated audio drivers, or incompatible sound sample rates. Core Fixes to Try First

Fix 11: Clean Boot (Isolate the Conflict)

A third-party app (Discord overlay, Razer Synapse, MSI Afterburner, or NVIDIA ShadowPlay) might be hijacking the audio stack. Call of duty exe err mss init failed 150

• Try a USB sound card (cheap external adapter). This bypasses your motherboard’s audio chip entirely.
• Disable onboard audio in BIOS (Advanced > Onboard Devices > HD Audio Controller > Disabled).

Reinstall the game

Still Getting Error 150?

Try launching the game with these command line arguments (in Battle.net/Steam): The "EXE_ERR_MSS_INIT_FAILED" error in Call of Duty (most

• Run CHKDSK on the drive containing the game and run a memory test (Windows Memory Diagnostic or MemTest86) if you suspect hardware faults.