If upon game launch you suffer d3dx9_43.dll missing error you definitely have a problem with a DirectX package.
Briefly, DirectX is a special set of the libraries that make video and audio components of the game run correctly.
Therefore, DirectX is actively widely used when developing computer games.
Some games change system files including DirectX libraries during installation.
Unfortunately, sometimes it leads to problems for the user — files can be damaged or become incompatible. What to do in this case? Let’s disclose in detail.
The simplest decision which comes to mind to the user is to download d3dx9_43.dll separately to place it on your PC.
However, this is not the only one. It is necessary to download d3dx9_43.dll manually only if nothing else has helped as there is a more optimum solution for this problem.
Why Do You Need the d3dx9_43.dll File?
All the files that are included to the DirectX are extremely important for the games to operate. And the d3dx9_43.dll is one of the most important ones as it contains the codes for interaction of the operating systems and video cards.
Usually, the problem with this library is caused by older games – the games that were developed in the 2004-2012.
Commonly you face this problem if the game installed was downloaded from a torrent and is an illegal repack of the original game – the repacks are usually delivered with damaged files.
Way 1. Reinstallation of a DirectX
Reinstallation of a DirectX package from Microsoft website is the most correct way of fixing the errors with the d3dx9_43.dll file. Firstly, it is safe.
The package is downloaded from the official site and isn’t infected with a virus as it can be with downloaded DLL. Secondly, having downloaded d3dx9_43.dll, and then having established it in system, you can have other errors with other DirectX libraries — as a rule, with libraries d3dx9_40.dll, d3dx9_41.dll, d3dx9_42.dll due to the possible conflict of versions. At reinstallation of all packages you will avoid it.
After reinstallation of a package reboot and starting a game. If it hasn’t helped, try to establish the special expanded version which is made especially for games launching — DirectX End-User Runtimes.
Way 2 – Manual Download of Library File
This way takes less time, but in the meantime it can be more risky to fix the d3dx9_43.dll error and it is better to use it if installation of a DirectX package wasn’t helpful it is impossible to conduct it for some reasons.
It is possible to download d3dx9_43.dll by following the link above.
Besides downloading the d3dx9_43.dll library, you need to place in the right folder: C:\Windows\System32 catalog for Windows XP, Windows 7 x32 and Windows 8 x32. If you have the Windows 7 x64 and Windows 8, 10 x64 paste the file in the folder C:\Windows\SysWOW64\
If you do not know the Windows version you have – whether it is x32 or x64 you can find that out in the My computer – Properties.