Directx 90c — Extra Files X86 X64
The safest way to get these "extra files" is through official Microsoft installers rather than third-party sites: Web Installer: DirectX End-User Runtime Web Installer
This long-form article will dissect everything you need to know about the , specifically the "extra files" (the June 2010 release and subsequent patches), and how they bridge the gap between modern 64-bit operating systems and classic 32-bit software.
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:
“The program can't start because d3dx9_43.dll is missing” directx 90c extra files x86 x64
The DirectX 9.0c extra files for x86 and x64 represent a bridge between two eras of computing. They act as a preservation mechanism for the golden age of PC gaming while simultaneously supporting the transition to 64-bit computing. The complexity of these files—separated by architecture and version number—highlights the intricate nature of software dependency management in the Windows ecosystem. While they may appear as clutter in an installer directory, they are the silent workhorses that ensure the compatibility layer of modern gaming remains invisible to the end user.
One of the most confusing aspects for users is the distinction between and x64 when dealing with DirectX 9.0c files.
In the world of PC gaming, particularly for fans of retro, classic, or indie titles, a common error message often appears: While modern Windows 10 and 11 come with DirectX 12, they do not always natively include all the legacy components required by older games. The safest way to get these "extra files"
If you genuinely need the 32‑bit and 64‑bit versions of every DirectX 9.0c DLL:
If you need an (e.g., for air-gapped PCs), search Microsoft for: DirectX 9.0c Redistributable (June 2010)
: Open the relevant _x64.cab archive (e.g., Jun2010_d3dx9_43_x64.cab ), copy the .dll file, and paste it into C:\Windows\System32 . Conclusion The “extra files” are those not strictly required
How to Safely Download and Install DirectX 9.0c Redistributable
, often referred to as the "redistributable," contains optional components not found in the base Windows installation.
If your gaming PC is offline, or if the web installer fails due to server issues, you should use the comprehensive offline archive. This package contains every single extra file ever released for DirectX 9.0c.