Causes Of D3DCompiler_43.dll is Missing Error What Is D3DCompiler_43.dll is Missing Error?ĭ3dcompiler_43.dll is a component of Microsoft DirectX, d3dcompiler_43.dll is usually used to run Microsoft DirectX-based applications such as Games for Windows or Winamp.Įvery version of Windows actually has Microsoft DirectX, such as in Windows XP there is Microsoft DirectX 8.1 and Windows 7 has Microsoft DirectX 11. How To Solve D3dcompiler_43.dll Is Missing Error.