Call Of Duty Exe Err Mss Init Failed 150 May 2026

"exe_err_mss_init_failed" (typically accompanied by error code 150) in Call of Duty titles like Call of Duty 2 Modern Warfare indicates a failure in the Miles Sound System (MSS)

Device Manager

Open and expand Sound, video and game controllers . Call of duty exe err mss init failed 150

Fix 10: Disable Game Mode and Hardware-Accelerated GPU Scheduling

Warning:

Back up your registry first (File > Export). outdated audio drivers

was unable to initialize your audio hardware. This typically occurs due to corrupted game files, outdated audio drivers, or incompatible sound settings. Core Troubleshooting Steps Call of duty exe err mss init failed 150

These Windows features interfere with audio initializations.