Follow these solutions in order from the most common fixes to advanced system troubleshooting. 1. Correct the Executable’s Installation Path
The first and most important step is to ensure all game files are correctly installed. Call of duty exe err mss init failed 150
At its heart, the MSS initialization failure occurs when the game’s executable cannot establish a handshake with the system's audio hardware. This often happens because the game expects a specific audio environment—such as a connected playback device or a compatible sample rate—that it cannot find upon launch. In many cases, the "150" variant specifically points to a disconnect between the software's initialization demands and the hardware's current state. Primary Causes Several factors can trigger this failure: Follow these solutions in order from the most
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Guide :: Fixing Cod2 Startup Problem - Steam Community At its heart, the MSS initialization failure occurs
Steam.dll is directly present in the root folder if launching via a digital store.
If you're still experiencing issues with the "Call of Duty EXE ERR MSS INIT FAILED 150" error, you may want to try the following additional resources:
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