Very often, avid gamers and users who use specific multimedia programs on computers encounter the fact that the system at one “fine” moment generates an error d3dx9_43.dll, or rather, indicates the absence of a component in the system in the form of dynamic libraries with the general name d3dx9. dll. Why such situations arise and how to deal with them, we will now see.
D3dx9_43.dll error: what is it?
In general, with regard to the appearance of error messages of this kind, first of all, you need to be clearly aware of their nature. In most cases, they are associated with the malfunctioning of the “bridge” DirectX 9 (or rather, its parts in the field of Direct 3D), which provides interaction between the “iron” components of a computer system and the software part of multimedia programs.
If you understand d3dx9_43.dll - what it is, it’s worth mentioning right away that error messages of this type are issued not only in the absence of a dynamic library number 43.
Often, the components indicated in the system by numbers 40, 41, 42, etc. may also be missing. All of them are part of the DirectX platform. By the way, the same errors can appear in all modifications of DirectX, only they will be indicated, for example, d3dx10_43.dll (for version DirectX 10), d3dx11_43.dll (for DirectX 11), etc.
Why is d3dx9_43.dll system error occurring?
There can be many reasons for the appearance of system messages containing indications of such errors. The most common situation is installing an outdated computer game in the system.
Since in this case the dynamic d3dx9.dll libraries are responsible for processing graphics and interacting with the video accelerator and game program files, all the consequences come down to the inability to start the corresponding graphics card drivers.
This situation is typical of outdated games for which DirectX installation, but only a lower version, was a prerequisite. Of course, in most cases, Windows itself does not allow installation of a earlier version, but this can happen with disabled protection or updates. After all, what happens? In fact, during the installation process, the original components of a more recent version are replaced with obsolete ones, although the main files may remain unchanged. This results in a mismatch between the individual software components and, as a consequence, the impossibility of the normal functioning of the entire platform and the video adapter in particular.
The simplest fix method
Now a few more words about the d3dx9_43.dll file. What is it, we have a little understanding. As already understood, since this is a file, the easiest solution is to replace it if it is present as an outdated version, or load it into the system if it does not exist at all.
In principle, today you can find quite a lot of sites offering its download in single mode. Yes, and don’t be scared if you see an inscription or link like “d3dx9_43.dll indir” on any site. This is not unusual. Most likely, you were redirected to the Turkish site, from where it is proposed to download the file. In fact, the phrase "d3dx9_43.dll indir" can be translated as "bootloader (download) file" under the same name. On Italian sites, the situation is similar, only there the loader or link to the file is indicated as indire.
However, back to the download. The downloaded file at the end of the download will need to be placed in a specific place. In the case of Windows XP, this is the System32 folder in the root directory of the system. If 64-bit versions are used, say, “sevens” or “eights”, such a folder will be called SysWOW64.
But do not underestimate the moment that after downloading only one file of the dynamic library with the 43rd number, you cannot be completely sure that the corresponding error will not appear again, but with respect to another component. And it can be repeated again and again. So, than downloading a bunch of files separately, isn’t it easier to install DirectX again, choosing the latest and most up-to-date version or assembly?
Full DirectX Update
We note right away that reinstalling DirectX is no more complicated than similar operations with other software or drivers. If you have an installation distribution, you can use it. However, it is better to go to the official website of Microsoft Corporation and download the latest version from there.
On the resource itself there is a special section in which all available versions and updates are indicated. It seems that this option will be most acceptable because of its simplicity, because in this way it is possible, as they say, to kill two birds with one stone: to fix errors, and at the same time update DirectX itself. After installing the latest version of this software, any graphic, video program or even an outdated game will work much more correctly. This is, so to speak, de facto.
Conclusion
As a matter of fact, here we have examined the question of d3dx9_43.dll - what is it related to both a separate component of the system and the appearance of the corresponding error, its causes and consequences.
In general, everyone decides how to correct such a situation. Naturally, if only one library (43rd) is missing or damaged, you can try downloading the missing file. True, in most cases this does not lead to anything. It seems to be much easier to update DirectX entirely. According to many users and experts in this field, this approach is much simpler, besides, there will be no problems at all. And then you have to search and download files separately. Then do their copying and so on.