DirectX error

d3dx9_43.dll not found how to fix

Solution

Working fix scenario

d3dx9_43.dll is one of the most commonly searched individual files. But installing DirectX runtime is more reliable because the game may need related DLL files.

What to do first

Download DirectX Legacy Runtime.
Start the installation.
Restart the game.
If the error remains, check the game file integrity.

Why this error appears

d3dx9_43.dll is missing error.
The game is old or uses DirectX 9.
The downloaded single DLL did not help.

Suitable package

File: directx_Jun2010_redist.exe
Type: Offline runtime
Size: 95.6 MB
SHA-256: 053f76dc…bf89c73b

This package is selected for the typical runtime scenario of this error. If the problem is related to the graphics card or Feature Level, first check the driver and GPU capabilities.

Download package

FAQ

Quick answers on the error

Can I download just one DLL file?

Better to install the runtime package first: it adds related components and reduces version error risk.

Why is DirectX installed but the error persists?

System DirectX and legacy components are different things. A game may require an old library not present in new Windows.

When won't the runtime help?

If the graphics card does not support the required Feature Level or the driver is damaged, the GPU and driver issue must be fixed.

DirectX versions

Download DirectX for Windows

If the current page does not match your game or Windows, choose a neighboring runtime package. The cards link to individual version pages.

DirectX 12

For modern games, Windows 10/11, and current graphics cards.

Current choice For most new games and fresh gaming builds

Windows 10 / 11 Graphics Direct3D 12 ScenarioNew games

Direct3D 12 and new graphics APIs
Best choice for new games
Compatible with modern video drivers

File:directx-12-runtime.exe

DirectX 11

For games from the Windows 7/8/10 era and projects that need a DX11 renderer.

Suitable for many games of the 2010s
Often needed for DX11 mode

File:directx-11-runtime.exe

DirectX 10

For old games and systems requiring DX10 compatibility.

For old engines and graphics modes
Helps meet the game requirements

File:directx-10-runtime.exe

DirectX 9

For classic games, D3DX9 components, and old game engines.

Helps with d3dx9_43.dll errors
Needed by many games of the 2000s

File:directx_Jun2010_redist.exe

Legacy Runtime

Full package of legacy DirectX SDK components for old games.

D3DX, XInput, XAudio, XACT
Offline installation without additional download

File:directx_Jun2010_redist.exe