Even after installing the DirectX 9.0c runtime, some older games may still fail because the legacy networking component is disabled by default in modern versions of Windows. DirectPlay was used by many late‑1990s and early‑2000s games for multiplayer functionality.
Imagine you’ve just installed a classic game from the mid-2000s on your shiny new Windows 11 PC. You hit "Play," but instead of seeing the title screen, you get a cold error: “The program can't start because d3dx9_43.dll is missing.” directx 90c extra files x86 x64
If you are missing only one file (like d3dx9_43.dll ), it is safer to install the full redistributable package rather than downloading individual .dll files from untrusted websites, which can contain malware. Conclusion Even after installing the DirectX 9