Medal of Honor: Allied Assault, a classic first-person shooter game developed by 2015 Inc. and published by Electronic Arts (EA), was released in 2002 to critical acclaim. The game is set during World War II and follows the story of John Marshall, a Marine who participates in various missions against the Axis powers. The game received positive reviews for its engaging gameplay, immersive storyline, and impressive graphics.

Right-click MOHAA.exe and select Run as Administrator . 2. Enable Widescreen & 1080p Resolution

Injected a modern OpenGL wrapper file into the game directory.

If you want, tell me whether your copy is retail, Steam, or GOG and describe the exact error (crash at startup, black screen, audio crash, multiplayer error) and I’ll provide precise commands/files to modify.

This guide provides the definitive, updated fixes to get Medal of Honor: Allied Assault running flawlessly on modern systems. Why Medal of Honor: Allied Assault Fails on Modern PCs

Navigate to \main\configs\ and open unnamedsoldier.cfg with Notepad.

The old "Browse Internet Servers" button will find nothing because GameSpy's servers are long gone. The key to playing online again is to use the server browser built into . It bypasses the old system entirely, connecting you to an active community-run master server.

Medal of Honor: Allied Assault (MOHAA) is a legendary first-person shooter that defined the World War II genre. However, running a game from 2002 on modern Windows 10 or Windows 11 systems presents challenges, including crashes, black screens, and resolution issues.

Right-click MOHAA.exe → Properties → Compatibility →

Open autoexec.cfg and custom.cfg and set your desired resolution. Important: The resolution must be divisible by 16 to avoid the Z_Free: memory block wrote past end error.

The game was programmed for 4:3 CRT monitors, which causes stretching or rendering failures on modern widescreen (16:9 or 21:9) 4K and 1080p monitors.

The original master server list is dead. To play online in 2026:

Paste the file directly into the folder where mohaa.exe resides. The Quick Desktop Shortcut Workaround

The game does not support modern resolutions by default. Use a community patch like War Chest Restored or the MOH: Community Launcher to enable widescreen. Expansion Pack Startup Fix

Ensure that any opengl32.dll wrapper you pasted into the primary directory is also copied over into the executable roots of the expansion files if they reside in separate subfolders. Final Checklist for a Flawless Playthrough