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cod1reloaded

A client mod for Call of Duty 1 multiplayer (CoDMP.exe). It modernizes the game without breaking anything: smoother frames, stable FPS, widescreen support, instant alt-tab, and animation fixes. No launcher — you just drop one file into the game folder. The mod updates itself.

⚡ Installation (3 steps)

1. Download the latest version

Grab cod1reloaded-X.X.X.zip from the releases page:

👉 https://github.com/cod1plus/client/releases/latest

Unzip it: you get mss32.dll and cod1reloaded.ini.

2. Open the game folder (the one with CoDMP.exe)

  • Steam: …\steamapps\common\Call of Duty\
  • Retail: C:\Program Files (x86)\Call of Duty\

In that folder, rename the existing mss32.dll to mss32_original.dll.

⚠️ Don't skip this. Our mss32.dll reuses the original one for audio. If you skip it, the game loses sound (or won't start).

3. Copy the two files

Put mss32.dll and cod1reloaded.ini into the game folder, then launch CoDMP.exe as usual.

Done. ✅

The folder should end up with:

File Purpose
mss32.dll the mod (our file)
mss32_original.dll the old mss32.dll, renamed (audio)
cod1reloaded.ini the configuration

🔄 Auto-updates

Nothing to do. On each launch the mod checks for a newer version. If there is one, it downloads it in the background and applies it on the next launch.

To disable: set updater_enable = false in cod1reloaded.ini.

✨ What it improves

  • Smoothness — kills microstutter (pins the game to the right CPU cores, raises priority, blocks throttling).
  • Stable FPS — precise frame limiter + 1 ms Windows timer: with com_maxfps 250 you actually get 250 (not 240–248).
  • Widescreen / Hor+ FOV — fixes CoD1's forced 4:3; you finally see wider on 16:9 / 21:9 instead of a stretched image.
  • Instant alt-tab — borderless windowed (fake fullscreen), no more black screen when switching windows.
  • Anti-exploit / animation fixes — fixes the up/down crouch view-height bug (the camera used to desync from the body, letting players peek while barely visible) and the left-lean clipping exploit (the camera peeked around cover while the body model stayed hidden).
  • Custom version — text shown in the main menu corner.

PunkBuster-safe: we don't touch sensitive dvars, only the engine's internal logic.

⚙️ Configuration (optional)

Everything is tunable in cod1reloaded.ini (each option is commented). Edit, save, relaunch. The defaults are fine for most players — you can leave it as is.

🗑️ Uninstall

  1. Delete our mss32.dll.
  2. Rename mss32_original.dll back to mss32.dll.
  3. (optional) Delete cod1reloaded.ini.

The game is back to vanilla.

❓ Troubleshooting

No sound / the game won't start → You probably skipped step 2: the old mss32.dll must be renamed to mss32_original.dll and kept in the folder.

Antivirus flags the .dll → Common false positive for this kind of mod (a DLL loaded by the game). Allow the file / add an exception.

The update didn't apply → Expected on the first launch: it downloads, then applies on the next launch. Start the game once more.

I can't find the game folder → On Steam: right-click the game → Manage → Browse local files.

Requirements

  • Call of Duty (2003), multiplayer (CoDMP.exe), patched to 1.5.
  • Windows.