Depending on your exact scenario, use this table to target the most likely fix:
Follow these steps in order to troubleshoot and resolve this issue. 1. Reinstall/Update the Game (The Most Likely Fix)
TeknoParrot injects custom DLLs into game processes to emulate arcade hardware. Error 4 occurs during LoadLibrary or NtCreateSection calls. The most common underlying Windows error mapped to code 4 is:
The issue turned out to be .
Missing Windows dependencies in the Proton prefix container.
I've already tried running as Admin and checking my AV exclusions. I'm on Windows [10/11]. Any idea what causes this specific error code?
: In the properties of the game's executable or the TeknoParrot patcher, check "Disable fullscreen optimizations" to resolve compatibility issues with some titles. Advanced Troubleshooting teknoparrot failed to load dll error 4 new
If found, to force the game to rely on the global system runtimes you repaired in the step above. 4. Force High-Performance GPU Execution
Right-click TeknoParrotUi.exe and choose your dedicated graphics card.
Extract the folder, right-click install_all.bat , and select . Depending on your exact scenario, use this table
Filter for TeknoParrot.exe and Result = NAME NOT FOUND or ACCESS DENIED . This shows exactly which DLL Windows is blocking.
: Security software often flags TeknoParrot's custom DLLs (like openparrot.dll
Recent updates, particularly versions from around 1260 to 1270, have been linked to this issue. This often requires us to reinstall key dependencies or reconfigure security settings. It's important to note that this is a runtime issue with your system environment, not a corrupt ROM. The emulator's core files are failing to load, not the game. Error 4 occurs during LoadLibrary or NtCreateSection calls
Failed to load DLL. Error code: 4 Applies to: TeknoParrot v1.0.0.0+ (recent builds) Primary cause: Windows is blocking TeknoParrot from loading a required DLL (usually nvapi64.dll , d3d11.dll , or game-specific hooks) due to security policies, missing dependencies, or corrupted runtime libraries.