Go to the tab and check Run this program as an administrator . Click Apply and OK. 6. Perform a Clean Boot
The best and safest source for game DLL files is your game's own installation files.
Ensure that a set of speakers or headphones is physically plugged into your PC before launching. The MSS engine often crashes if it cannot find a valid playback device at startup. 3. Update or Reinstall Sound Drivers Call of duty exe err mss init failed 150
This error is intrinsically linked to your PC's sound system. A very quick, diagnostic, and often surprising solution is to try connecting a set of speakers or headphones to your PC. Some users have reported that the game's "Miles Sound System" fails to initialize correctly if there is no audio device detected, and simply plugging something into the audio jack can instantly solve the problem.
The Miles Sound System is an industry-standard audio middleware engine utilized heavily in classic and modern Call of Duty titles (most notably Call of Duty 2 and early Modern Warfare titles). When the game executable initializes ( cod.exe or cod2mp.exe ), it queries your system's sound card. Go to the tab and check Run this program as an administrator
While it may be an old issue, it's one of the first major technical hurdles a new Call of Duty player on PC might face. However, the fixes are now well-documented by the community and support teams. With patience and the right approach, you'll have your sound system initialized and be back in the action before you know it.
If all else fails, a clean uninstall and reinstall is often the final and most effective solution. Perform a Clean Boot The best and safest
To fix the crash, it helps to understand what the error code is telling you:
Right-click the file, select , and then Paste it straight into your master Call of Duty directory on your C: or D: drive. From an External Source:
: As a last resort, a complete wipe of the game and its launcher can sometimes fix lingering issues. Use a program like Revo Uninstaller to remove the game and then clean up leftover registry entries and files from your PC. After that, perform a fresh download and installation.