A hidden utility that allows forcing refresh rates, emulating older pixel shader versions, or disabling hardware acceleration for compatibility testing.
Searching for "directx 90c extra files x86 x64" signals a classic compatibility issue. Modern Windows includes only the core APIs, but the "extra" SDK components for graphics (D3DX) and controllers (XInput) are still essential for thousands of legacy games.
: Used by 32-bit applications. These files are typically stored in the C:\Windows\SysWOW64 folder on 64-bit systems.
When a user downloads the “DirectX End-User Runtime Web Installer” from Microsoft, it does not merely install the latest version. Instead, it unpacks a large cabinet ( .cab ) archive containing hundreds of files. The “extra files” are those not strictly required for the base API to function but are needed for specific games or debugging. Common examples include: directx 90c extra files x86 x64
The "extra files" refer to the optional architectural redistributable packages. These contain the complete history of these DLL files for both and x64 (64-bit) systems. Why Modern Windows Systems Need These "Extra Files"
The best way to resolve these errors is to install the June 2010 Redistributable package. Step 1: Download the Official Package
To understand the "extra files," we must clarify the structure of the 2004-era DirectX 9.0c suite. A hidden utility that allows forcing refresh rates,
, which provide legacy support for older games and applications on modern Windows versions like Windows 10 and 11.
A: The Web Installer ( dxwebsetup.exe ) downloads only the components your system is missing, making it smaller to download initially. The Standalone Redistributable ( directx_Jun2010_redist.exe ) contains the entire package and is useful for offline installations.
| Error Message | Missing File | Architecture | | :--- | :--- | :--- | | "The code execution cannot proceed because d3dx9_31.dll was not found" | D3DX9_31 | x86 (Most common) | | "d3dx9_35.dll is missing from your computer" | D3DX9_35 | x86 | | "Failed to create XAudio2 engine" | XAudio2_6.dll or XAPOFX.dll | Both | | "XINPUT1_3.dll not found" | XINPUT1_3 | x86 (Older controllers) | : Used by 32-bit applications
downgrade your version of DirectX. It simply adds the missing old files alongside your current version (DirectX 12) so older software can function. Are you currently getting a specific error message
Create a temporary folder on your desktop (e.g., DX9Files ) and extract the contents there. Open the temporary folder and locate . Right-click dxsetup.exe and select Run as Administrator .