1.0.2902.0

Microsoft DirectX Direct3D version is not a standalone software version but a specific Managed DirectX 1.1 assembly file ( Microsoft.DirectX.Direct3D.dll ). It is primarily used by legacy games and applications developed with the DirectX 9.0c SDK . Why You Need Version 1.0.2902.0

If you are maintaining or reverse-engineering an old 3D application written for DirectX 3, you need the exact runtime environment. Version 1.0.2902 contains specific DLLs (like d3drm.dll for Retained Mode) that are not present in newer DirectX releases.

The Safe Solution: The DirectX End-User Runtimes

Step A: Run the DirectX End-User Runtime Web Installer

Research Compatibility:

Before installing, research the compatibility of the specific version with the intended applications or games.