Download d3dx9_42.dll file to fix Zoroastra’s d3dx9_42.dll error

One of the major frustrations of PC gamers is the infamous "[certain.dll] file is missing" type of errors. Often when install Zoroastra and try to play it, you will encounter this d3dx9_42.dll file missing error. In this post, we will learn how to diagnose d3dx9_42.dll related error in Zoroastra. Once we have diagnosed d3dx9_42.dll error in Zoroastra, we will look at various ways to fix it.

  • Developer: Kyrus
  • Publisher: Kyrus
  • Release Date: Apr-03-2025

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What You Need to Run Zoroastra

Minimum Zoroastra Requirements

  • Operating System: 64-Bit Windows 7 Service Pack 1, Windows 8, or Windows 10
  • Processor: Intel Core i3-4340 @ 3.60GHz or AMD Ryzen 5 1600
  • RAM/Memory: 2 GB RAM
  • DirectX Version: Version 11
  • Disk Space: 17 GB available space
  • Display Card: nVidia GTX660, AMD Radeon R9 270

How to Fix d3dx9_42.dll is missing error in Zoroastra

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_42.dll is missing error in Zoroastra is to just download and install the version of DirectX that is required by Zoroastra.

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

Download DirectX9 here.

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_42.dll

Another way of fixing d3dx9_42.dll is missing error in Zoroastra is to simply download d3dx9_42.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_42.dll related errors

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