Disable the Origin/EA App overlay and Steam overlay , as these are known to cause instant crashes on startup.
Download a modern dsoal (DirectSound to OpenAL) wrapper.
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
Ensure your Windows sound output is set to 44.1 kHz to prevent distortion. Graphics Driver Fixes medal of honor allied assault windows 10 fix upd
seta r_customwidth "1920" seta r_customheight "1080" seta r_mode "-1" seta r_fullscreen "1"
For the best and most stable performance, especially in the Spearhead expansion, set the following in the game's options: Color Depth : 16-bit; Texture Color Depth : 16-bit; Shadows : Simple; Curve Detail : Low. This resolves the severe performance drops some players experience.
Remember that moh_spearhead.exe and moh_breakthrough.exe are completely separate execution files. You must repeat Step 3 (Compatibility Mode) for these executables. Disable the Origin/EA App overlay and Steam overlay
By default, MOHAA only supports 4:3 aspect ratio resolutions (like 1024x768). Running this on a modern 1080p, 1440p, or 4K monitor stretches the image horizontally, ruining the visuals.
Copy the contents of the patch into your MOHAA root folder. 4. Configure Compatibility Mode Right-click mohaa.exe . Select Properties > Compatibility .
For those who are determined to use their original disks, your only other option is to apply a "no-CD fix" or "crack". This is a modified executable file ( MOHAA.exe ) that bypasses the game's disk check, thereby circumventing the DRM blocking. Why Medal of Honor: Allied Assault Fails on
As of 2026, many older "fixes" for servers no longer work because the master server IP address has changed again. To see the busy multiplayer servers—which are active with players today—you must update your .exe file.
Incompatible game on Windows 10 - Medal of Honor Allied Assualt
| Problem | Solution | | :--- | :--- | | | This is a memory leak. Right-click MOHAA.exe → Compatibility → Check "Override high DPI scaling" → System (Enhanced). Also, reduce texture quality in Options → Video to "Medium". | | Mouse feels floaty / negative acceleration | Set m_filter "0" and m_rawinput "1" in config.cfg. Turn off "Enhance pointer precision" in Windows Mouse Settings. | | Game opens on wrong monitor | Use Windows key + Shift + Left/Right Arrow to move the window, then alt+enter to fullscreen. Or set r_fullscreen "0" and use Borderless Gaming (free utility). | | No sound in cutscenes | Download "MOHAA Bink Video Codecs" (from the Revival Patch). Copy binkw32.dll into the main\video folder. | | DirectX 8.1 error on launch | Download and install DirectX 9.0c Redistributable (June 2010) from Microsoft. It will install legacy DX8 files without harming Windows 10. |
MOHAA Revival v2.50 (or newer)