Call of Duty 2 - Custom Patch v2

Updated
- Added: Distance Fix
- Added: Windowed mode

Edited November 27, 2024 by LuKeStorm

Update 20241224
- Patch Dll file recompiled to defuse massive false positive detection of the last days (it's fucking annoying)

First, thank you for this patch! I've been playing with v1 of your patch for years.

That said, I've been having trouble with getting this patch to load successfully in some cases. I think it has something to do with the location, or with some metadata that Windows has attached to the location.

For example, I have a working installation in "C:\Games\COD2". I can tell that the patch is working fine by e.g. enabling WindowedMode or NoStartupBlackscreen. I copy-paste that working folder to "C:\Games\data" and run `CoD2MP_s.exe` from there, I can tell that the patch still loads. If I copy-paste the installation to "C:\Code\COD2\data", it stops working. No matter how many times I clear out that location and copy-paste the working install to it, it does not work. When it does not work, I get the long black screen, and some of my settings get reset. I've tried copy-pasting it to other places, and sometimes it works, sometimes it doesn't.

These installations are 100% identical at the time of launch due to the copy. If I attach to `CoD2MP_s.exe` with the IDA debugger, I can tell that in the cases where the patch gets loaded successfully, the `winmm.dll` in the folder alongside the `exe` gets loaded, but in cases where the patch doesn't load, that local `winmm.dll` never gets loaded. I think it might have something to do with certain threads starting earlier for some reason, but I am not sure.

I am very confused about what might be causing this. I hope you might be able to replicate this issue via copy-pasting your installation. Otherwise, would you consider offering a pre-patched version of `CoD2MP_s.exe` for those of us who run into this issue?

 

@sourceror
Thanks for the feedback, I will look into it.

Edit:
It works on my end in path "C:\Code\COD2\data" and can't reproduce it.

Try the following:
1.Open the "CoD2MP_s" exe file with e.g hex editor or cff explorer and change  -> "WINMM.dll" to "patch.dll" -> save.
2.Rename winmm.dll to patch.dll file and test if it changes anything

Sounds strange in any case. If anyone reads this and also has the same problem, please contact me.

Ok, can you tell me what i'm doing wrong, because it's not working...

 

 

I have installed the 1.3 patch.

Thx in advance.

@zerocool22
Private message sent

Patch via winmm dll file not working?
Download updated custom patch and use dbghelp dll from "retail\winmm_alternative" folder

Hey there.. I have version 1.2 (retail)
I copied winmm.dll and the cod2patch.ini in my game folder but it doesn't do anything!

I tried the dsound.dll method and it worked, but I need dsound.dll from DSOAL so I can't use that!

Also doesn't matter which version I use: Multiplayer doesn't work anymore.. it just crashes to desktop without an error message

@psxmicha
dsound.dll: Thanks for the very useful feedback, Now I know why it doesn't work with winmm on some systems. (I will add further options)
 

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I have version 1.2 (retail)

v1.2 mp or sp ? (mp v1.2 not supported)

 

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Also doesn't matter which version I use: Multiplayer doesn't work anymore.. it just crashes to desktop without an error message

with custom patch? what you mean by "version"?

 

40 minutes ago, LuKeStorm said:

@psxmicha

 

v1.2 mp or sp ? (mp v1.2 not supported)

 

with custom patch? what you mean by "version"?

Oh my fault.. seems like my install was broken. I reinstalled the game and now everything works fine! but only with the Dsound.dll which I can't really use because of the dsound.dll from DSOAL 😄

@psxmicha
I will add another option besides winmm/dsound.dll

Update 20250811
- Added: Alternative dbghelp dll proxy

In case winmm dll doesn't work, there is now an alternative.
Let me know if the alternative also doesn't work @psxmicha and others

13 minutes ago, LuKeStorm said:

Update 20250811
- Added: Alternative dbghelp dll proxy

In case winmm dll doesn't work, there is now an alternative.
Let me know if the alternative also doesn't work.

no doesn't work for me 😕 just to get it right: I just have to copy dbghelp.dll and cod2patch.ini into my cod 2 folder, right?

 

@psxmichacorrect, private message sent.

Update 20250812
- Updated: winmm dll proxy (should now also work where it didn’t work before)
- Removed: Alternative dbghelp dll proxy (not working by default)
- Fixed: typo

Thanks @psxmichafor feedback and testing!

Hi LuKeStorm! I get this error when using some mods:

Can you embed this fix too? https://aluigi.altervista.org/patches/cod2vawo.lpatch

@Vlad23
Yes, I will integrate this patch with an update

Update 20251106  @Vlad23
- Added: DisableGPUSync patch (sets r_gpuSync to 0)
- Added: AttemptedOverrunStringFix patch by aluigi (fixes attempted overrun error)
- Renamed: DistanceFix to ForceMaxDetail
- Updated: ForceMaxDetail patch (all models use highest level of detail)

On 11/7/2025 at 4:16 AM, LuKeStorm said:

- Updated: ForceMaxDetail patch (all models use highest level of detail)

Congratulations on the update!

Have you thought about raising IW engine limits (listed somewhere in gfx_d3d_x86_s.dll) to circumvent the disappearance of models due to their excess? 

I've noticed this behavior at least at duhoc_assault and elalamein levels:

ForceMaxDetail=0

ForceMaxDetail=1 (Thompson and NPC next to the player are missing)

In some places in singleplayer, r_lodBias -1000 causes such issues. I'll have to see how I deal with it in singleplayer.

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Have you thought about raising IW engine limits

No

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- Can be used together with CoD2x

CoD2 MP Steam + CoD2x 1.4.6.2 + Custom Patch v2 20251106

 

@Vlad23
ForceMaxDetail patch causes this issue with CoD2x, thanks for feedback!

Edit:
- Fixed: ForceMaxDetail patch