Version numbers in the 1.0.xxxx range for DirectX usually refer to the very early iterations of the DirectX APIs (likely from the Windows 95 or early Windows 98 era). Specifically, early builds of Direct3D were revolutionary because they standardized 3D graphics rendering, allowing developers to write code that worked across different graphics cards (like the Riva TNT or Voodoo cards of the time).
If you are seeing this specific version number, you are likely looking at the file properties of a legacy system file (like d3d.dll or ddraw.dll) or a very old redistributable package. download microsoft directx direct3d version 1.0.2902
To understand why you cannot simply find a "Direct3D 1.0.2902" installer, it is helpful to understand the numbering system used by Microsoft: Download Microsoft DirectX Direct3D Version 1
1.0.2902 does not refer to the main marketing version of DirectX (i.e., it is not "DirectX 1.0").
2902 (or similar 4-digit strings) typically relates to DirectX 9.0c updates. Specifically, D3DX9_30.dll (a common DirectX 9 file) often carries version numbers in the 1.0.29xx range in its file properties.The Verdict: You are likely looking for a specific update to DirectX 9.0c, not the original DirectX 1.0 from 1995. What is Version 1
Warning: Direct3D 1.0 is extremely old and unsupported. It may not run on modern Windows versions; use only for legacy compatibility testing or inside virtual machines. Proceed at your own risk.