Microsoft Corporation is the developer of d3dx9_43.dll and the file belongs to Direct3D 9 Extensions. The latest version of d3dx9_43.dll file is v9.29.952.3111 which is a 64 with a file size of approximately 2.29 MB. Download d3dx9_43.dll file for Windows 7, Windows 8, Windows 10 and fix d3dx9_43.dll is missing or not found dll error.