Why is the D3DCompiler_43.dll is missing error appearing?Ī common cause of this error is that the company you have bought your PC from has forgotten to install the library. In order to fix this problem, you have several options listed below with the simplest solution being to restart your computer. Without this file, the game you are trying to run will assume that it can’t run without it and throw up an error. It was more than likely added to a computer program that you are trying to run in order to communicate with the graphics processing hardware you have fitted. When playing Life is Strange on Windows you may also bump into the PhysXCore.dll library being missing, an important part of its graphics processing. Several other titles rely on this library in order to even get past the initial launch phase including: If you are trying to use the Epic Games Launcher to buy or just launch one of the games you have bought from them then you may also run into problems with the library. The most popular video game that relies on this 3D graphics compiler is the world’s biggest-selling game GTA V. It is common within older games that rely on the DirectX SDK such as for 3D graphics.

This DLL is responsible for compiling HLSL code within an application you are trying to run into bytecode. On this page, I have laid out the information you will need to know to understand what is causing this error as well as the versions of D3DCompiler_43.dll which are sorted by age and type of operating system.

D3dcompiler_43.dll not found