Installing RInput v1.44 (Raw Mouse Input for CoD2)
After Windows 10 version 1607 (Released in 2016) Microsoft made some changes that caused mouse input to stutter even with Enhance Pointer Precision disabled, I know this because I tested it myself with 1607 and 21H2. Ever since then, to get 1 to 1 mouse input with no acceleration and no stutter or lag people have used a program called RInput.
RInput is used by those who play CoD2 Solo Queue on FPSChallenge.eu and as such, does not trigger that Anti-Cheat. If I remember correctly other Anti-Cheat software such as FACEIT do flag this program as suspicious so please don’t try to use this on CSGO or VALORANT. I don’t want to be responsible for you getting banned (Unless you cheat on CoD2). It effectively does the same thing as “m_rawinput” in CSGO so you shouldn’t need it for that game anyway.
RInput v1.44 can be found here on the Fearless Assassins website. https://fearless-assassins.com/files/file/1656-rinput/
You’ll also need to download and install 7-zip to extract the RInput file and that can be found here on the 7-zip website. https://www.7-zip.org/
Download RInput v1.44 and extract it using 7-zip:
Inside the folder you just extracted you’ll find a redistributable file that wasn’t included in the ones you installed earlier, install it:
After installing it you can delete “vcredist_x86.exe”.
Copy the RInput 1.44 folder to your C:\ drive:
Edit “RInput.exe” properties and set it to run as an administrator:
Right-Click “RInput.exe” and select “Create Shortcut”:
Rename the created shortcut to “CoD2 RI”:
Edit “CoD2 RI” properties and add the CoD2 executable name to the end of the “Target” box:
Right-Click “CoD2 RI” and pin it to your Start Menu:
Run „CoD2 RI“ from the Start Menu shortcut you just created and you’ll see this:
With this window still open, run CoD2 and if you’re quick enough you might just catch this:
You can see that it says “Successfully injected library into process”. This means that RInput is working and has injected itself into CoD2, you will now have perfect 1 to 1 mouse input with no acceleration or stutters. If you run CoD2 RI and you don’t see a “Successful” message then try running CoD2 RI again, sometimes it just doesn’t inject and trying again usually fixes it.
The above screenshots show „RInput v1.31“ but the actual .dll that is injected is the newer v1.44, they updated the .dll but not the .exe. You need to run CoD2 RI before CoD2 every time if you want 1 to 1 mouse input.