Fix d3dx9_39.dll related errors in Assetto Corsa Competizione

One of the major frustrations of PC gamers is the infamous “[certain.dll] file is missing” type of errors. Often when install Assetto Corsa Competizione and try to play it, you will encounter this d3dx9_39.dll file missing error. In this post, we will learn how to diagnose d3dx9_39.dll related error in Assetto Corsa Competizione. Once we have diagnosed d3dx9_39.dll error in Assetto Corsa Competizione, we will look at various ways to fix it.

  • Developer: KUNOS-Simulazioni Srl
  • Publisher: 505 Games, Game Source Entertainment
  • Release Date: September 12, 2018

What You Need to Run Assetto Corsa Competizione

Minimum Assetto Corsa Competizione Requirements

  • Operating System: Windows 7 64-bit Service Pack 1
  • Processor: Intel Core i5-4460 or AMD FX-8120
  • RAM/Memory: 4 GB RAM
  • DirectX Version: Version 11
  • Disk Space: 50 GB available space
  • Display Card: GeForce GTX 460 2GB, Radeon HD 7770

How to Fix d3dx9_39.dll is missing error in Assetto Corsa Competizione

Download & install DirectX

DirectX is a bunch of APIs mixed together that handle multimedia related tasks such as playing high fi video games, video and 3D content. One of the basic steps to fix d3dx9_39.dll is missing error in Assetto Corsa Competizione is to just download and install the version of DirectX that is required by Assetto Corsa Competizione.

Typically, DirectX 9 or 11 do just fine for most video games.

Download DirectX 9

Download DirectX 11

Often, just downloading and installing DirectX will solve your problem. However, if you are still facing the problem. Let’s move on the next step, shall we?

Download & install d3dx9_39.dll

Another way of fixing d3dx9_39.dll is missing error in Assetto Corsa Competizione is to simply download d3dx9_39.dll file as per your PC configuration and install it in Windows\System32.

To download file from our secure servers, go to the following page: fix d3dx9_39.dll related errors