Reset your system to default clock speeds and attempt to launch the game again.
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.
| Priority | Fix | Success Rate | | :--- | :--- | :--- | | 1 | Disable extra audio devices (Device Manager) | 80% | | 2 | Turn off Windows Sonic / Audio Enhancements | 65% | | 3 | Run as Admin + Windows 8 compatibility | 50% | | 4 | Uninstall Voicemod / Virtual Cables | 45% | | 5 | Modify config.cfg (seta snd_system "0") | 40% | | 6 | Clean Realtek driver reinstall with DDU | 35% |
Broken Visual C++ Redistributables or corrupted player configs. Call of duty exe err mss init failed 150
Since the error is audio-related, addressing your audio drivers is often the direct solution.
ERR_MSS_INIT_FAILED 150 is a ghost from the mid-2000s haunting a modern AAA experience. It is proof that beneath the 4K textures and ray-traced shadows, Call of Duty still runs on a skeleton of legacy code.
: The game execution engine experienced a critical failure. Reset your system to default clock speeds and
Windows security features often restrict legacy applications from accessing local system libraries or registry folders, generating initialization blocks. Navigate to your Call of Duty root installation directory.
Right-click the speaker icon in your taskbar and select . Go to the Recording tab.
There are several potential causes of the "Call of Duty EXE ERR MSS INIT FAILED 150" error, including: This can happen after a Windows reinstallation, driver
To resolve the "Call of Duty EXE ERR MSS INIT FAILED 150" error, try the following troubleshooting steps:
Alternative Error Chart: Related Legacy Call of Duty Launch Crashes
Resolution scaling conflict with modern high-refresh monitors.