.dll icon

d3dx11_43.dll

Updated: Files Available: 61
Verified Metadata AI Analysis x86-64 (64 bit) x86 (32 bit)

Download and install d3dx11_43.dll to fix missing or corrupted DLL errors.

ADVERTISEMENT

DLL Overview

Last Updated
Jan 12th, 2026
Filename
d3dx11_43.dll
Company
Microsoft Corporation
Product
Microsoft® DirectX for Windows®
Description
Direct3D 10.1 Extensions
Architecture
x86-64 (64 bit) x86 (32 bit)
Metadata Consensus
59/61 Files 96.7%
Higher percentages indicate stronger agreement across versions. View available versions or browse repository metadata to compare differences between variants.

DLL Download Options

Download

About d3dx11_43.dll

d3dx11_43.dll is a DLL file (Dynamic Link Library) used by Windows programs to share code and resources. It allows multiple applications to use the same functions, improving performance and reducing redundancy.

Overview

What Is d3dx11_43.dll?

d3dx11_43.dll is part of the DirectX 11 (June 2010) Direct3D Extension (D3DX) library. Many Windows games and 3D applications built before DirectX 12 still depend on this legacy component. It includes helper functions used for:

  • Shader compilation
  • Texture and mesh loading
  • Utility math functions for 3D rendering
  • High-level Direct3D operations required by older engines

If the file is missing or corrupted, games typically fail to launch with errors related to DirectX components.


Common Errors

d3dx11_43.dll is missing from your computer
The program can't start because d3dx11_43.dll was not found
Error loading d3dx11_43.dll
The code execution cannot proceed because d3dx11_43.dll is missing

These appear when a game relies on the legacy DirectX 9/10/11 runtime that is not included in Windows 10 or 11 by default.


How To Fix d3dx11_43.dll Missing Errors

1. Install the DirectX End-User Runtime (June 2010)

This is the official, complete package containing all legacy DirectX files used by older games — including d3dx11_43.dll.

After installing, restart your PC and relaunch the game.


2. Check Antivirus Quarantine

Some security tools mistakenly quarantine DLLs used by older games.

Open your antivirus → Quarantine → restore d3dx11_43.dll if listed.

Then relaunch the game.


3. Verify the Game’s Files (Steam / Epic / GOG)

This restores any missing or modified DirectX components bundled with the game.

  • Steam → Library → right-click game → PropertiesInstalled FilesVerify Integrity
  • Epic Games → three dots → ManageVerify
  • GOG Galaxy → game → MoreManage InstallationVerify / Repair


Manual Installation (Optional)

If the game still won’t launch, you can manually place the DLL.

Place d3dx11_43.dll in the application folder, usually:

  • C:\Program Files\GameName\
  • C:\Program Files (x86)\GameName\
  • Or inside the game’s /bin, /win32, /win64, or /binaries folder.

If the software requires 64-bit and you only have the 32-bit DLL (or vice-versa), the game may still fail to load.


Should You Copy It to System32 or SysWOW64?

Not required.

Only use system folders if the application specifically needs it and you cannot locate its install directory.

  • 64-bit DLL → C:\Windows\System32\
  • 32-bit DLL → C:\Windows\SysWOW64\

This does not replace installing the official DirectX runtime.


Why This File Is Still Needed

Even on Windows 10/11, Microsoft does not bundle the legacy D3DX helper libraries. Many classic games (2007–2016) still depend on them.

Installing the DirectX End-User Runtime is the correct long-term fix.


Summary

  • d3dx11_43.dll is a legacy DirectX 11 D3DX component.
  • Missing errors occur when the older DirectX runtime isn't installed.
  • Install the DirectX End-User Runtime (June 2010) to fix almost all cases.
  • You may also need to restore from antivirus quarantine or verify game files.
  • Manual placement works but should be a last resort.


If you need a different version or variant of d3dx11_43.dll, you can request one on the file page to help us prioritize uploads.

File information is supported by Human Assisted Artificial Intelligence and should be used as a helpful tool. However, it is important to keep in mind that this information may not be up-to-date or entirely accurate.

Troubleshooting DLL Errors

Most errors involving d3dx11_43.dll occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application or replacing the DLL resolves the issue. The steps below cover the most common and reliable ways to fix these errors.

Windows DLL Error Examples

This application has failed to start because d3dx11_43.dll was not found. Re-installing the application may fix this problem.
d3dx11_43.dll Not Found.

Fixes and Solutions

The first step in resolving DLL errors is to completely uninstall the affected software and reinstall its latest version. We know this does not always solve the problem, which is why DLLme exists. If reinstalling the application does not help, or if you are unsure which app is causing the error, follow the steps below. These are the most common solutions for fixing d3dx11_43.dll errors.

  • Repair Windows: Make sure Windows is fully updated, then open Windows Terminal or PowerShell as an administrator (search for “PowerShell” in the Start menu, right-click it, and choose “Run as administrator”). This allows you to repair the Windows component store and run the System File Checker (SFC).

    Repair the Windows component store so SFC can pull clean files:

    DISM /Online /Cleanup-Image /RestoreHealth

    Scan all protected system files and automatically repair problems:

    sfc /scannow
  • Uninstall & Reinstall: On this DLL page, check the Company/Product section to identify the related app, then fully uninstall it. If you plan to continue using it, reinstall the latest version. Be sure to save or back up any important data before uninstalling. Windows or antivirus software may sometimes quarantine DLL files, especially if the DLL is unfamiliar or appears suspicious. Check your antivirus quarantine or logs to determine if this is the cause of your issue.
  • Download the DLL: Download the latest 32-bit or 64-bit version of the DLL directly from our repository using the download button above. Most users will need the 64-bit version, but if you are unsure, or if a 64-bit version is not available, you can install both the 32-bit and 64-bit DLLs. DLLme verifies DLLs that come from our admins, partners, and trusted affiliates. User-uploaded files may be verified later if a trusted source is confirmed.
  • Register the DLL: Most DLL files do not need registration, but some DLLs are COM components and must be registered to work correctly. If registration is required, open Windows Terminal or PowerShell as an administrator.

    Register the DLL (you can also drag the DLL file into the window to automatically fill in its full path):

    regsvr32 "C:\path\to\d3dx11_43.dll"

    If you are registering a 32-bit DLL on 64-bit Windows, use the 32-bit RegSvr32:

    C:\Windows\SysWOW64\regsvr32 "C:\path\to\d3dx11_43.dll"

    Or open Windows Terminal/PowerShell in the DLL’s folder and run:

    regsvr32 d3dx11_43.dll

How to Install d3dx11_43.dll

To install d3dx11_43.dll, place the DLL file in the appropriate Windows system folder or in the same folder as the application’s .exe file. If you are not sure which version (32-bit or 64-bit) to use, you can safely install both.

On 64-bit versions of Windows, place 64-bit DLL files in:

C:\Windows\System32\d3dx11_43.dll

Place 32-bit DLL files in:

C:\Windows\SysWOW64\d3dx11_43.dll

Or place the DLL file next to the application’s .exe:

C:\path\to\exe\d3dx11_43.dll

DLL Metadata

Metadata details such as companies and products associated with d3dx11_43.dll.

Request a Different Version

Requesting d3dx11_43.dll could improve your odds of getting a new version or variant faster.

Make a Request

117 people recently requested a new version or variant.
  1. d3dx11_43.dll
  2. d3dx11_43.dll x64
  3. windows 10
  4. 64

Similar .DLL Files

Related to d3dx11_43.dll, grouped by different match signals.

Same Base Name

Broader Matches (Recent)

Same File Hash

No items to show in this category.