If you’re seeing the error message exeerrmssinitfailedmp while trying to download or run Call of Duty 2, this post explains what that error usually means, how to fix it, and safe steps to get the game working again.
The string "exeerrmssinitfailedmp" appears to be a typo or concatenation of:
This suggests a failed initialization of the multiplayer executable, often due to:
Use compatibility mode (Windows)
Install/repair Visual C++ and DirectX runtimes
Install/repair .NET Framework
Verify or reinstall game files
Check antivirus / firewall
Run in windowed mode / reduce graphics hooks
Update GPU drivers
Check for mod/patch conflicts
Use a community compatibility fix