Fixing the error with the missing d3dx9_31.dll library

There are very few people who would not have met the error associated with the absence of the d3dx9 31 dll library on the computer. A very common error, but it is often solved incorrectly: they download d3dx9 31 dll to the computer separately, which does not solve the error, but only aggravates it. But we will go the other way! This method will solve the problem 100%, but first, let's talk about this error in more detail.

The game has already been downloaded and installed on the computer, but the only thing that we see at startup is the system error message: "The program cannot be launched because d3dx9_31.dll is missing ...". And the question immediately arises: what to do? Where to download d3dx9 31 dll for Windows 7-8-10? And where to throw it after downloading? And why doesn't this method work? But everything is very simple. In just a couple of minutes and the game will work, you will forget about this error.

But first we will analyze where this error comes from, and then we will quickly solve it.

How to solve the problem with d3dx9 31 dll and what is this error

To begin with, I will say that downloading a d3dx9 31 dll file is the worst idea in the world. No, you can download it, but the probability of solving the problem will be 1%, and in 99% of cases you will damage the system or infect the computer with a selected collection of viruses.

The problem is solved in another way, namely, you need to download DirectX - this application includes all the dlls that are needed for the games to work. And know that it needs to be updated from time to time! To do this, you just need to download the installer from our website using the link below:

Installing DirectX is pretty easy! Download and run the app. After that, you will see the program welcome window. Here you just need to accept the license agreement, and click the next button:

Don't rush! There is an important point, you need to uncheck the box: "" Install Bing Bar ". We don't need it? This is how all the garbage accumulates on your computer, with one program you can install a full package of" useful "programs. So be careful friends!

After that, the application will be installed:

And the install message we've been waiting for! We did it! Installed the program d3dx9 31 dll without registration and SMS:

Here's another video recorded for you:

So, I decided to write about the second solution, which is more likely to not work, but suddenly someone really needs to download d3dx9 31 dll separately, do not leave it without instructions.

You will need to copy this ddl-ku to the system folder, most often it is C: \\ Windows \\ System32 \\, as well as C: \\ Windows \\ SysWOW64 \\ for a 64-bit system. How to find out about my system I wrote here:

Known to many gamers, the Sims lifestyle simulator is not only the best game in its genre, but an application, the last parts of which are not complete for many users without an error with d3dx9_31.dll. This problem is also common for GTA IV, the Spiderman series, and Transformers, as well as many other popular games.

During the startup, an inscription like "launch is impossible, d3dx9_31.dll is missing, reinstall the program". Attempts to follow this instruction and reinstall the game were carried out many times, but did not bring any benefit. This problem is solved in a slightly different way. Since the system gives us information about the absence of a file, we need to provide it with the file necessary for correct operation and indicate its presence so that it can use it in the way it should.

In such cases, there are two options for solving the problem:

· Download the d3dx9_31.dll file and copy it to the required directories;

· Install DirectX - the package that contains this file.

Both have their pros and cons. So let's take a closer look at them.

Option one

1. The method is simple, and you probably can easily cope with all the actions. Do not worry about compatibility with your operating system, as the file is equally suitable for any version of Windows (7, 8, 10, XP). The main thing is to follow the correct procedure:

2. Download the d3dx9_31.dll file

3. Unpack the file from the archive and copy it to the clipboard.

4. Go to the folder with the problematic game and copy the file to the Bin directory from the clipboard. If the Bin folder is missing, then copy to the root directory of the game.

5. Determine the bitness of the operating system. To do this, in the section my computer, click "system properties" and in the item "system type" you will see the necessary information.

6.Copy the file again to the Windows system folder. If your OS is 32-bit, then we will install in C: \\ Windows \\ System32, if 64-bit - C: \\ Windows \\ SysWOW64.

7. Register the file in the system.

8. To do this, go to the "Start" menu, click "Run" (or press Win + R) and enter "regsvr32 d3dx9_31.dll" in the appeared field without quotes.

9. Reboot the computer.

Then start the game. If you have not achieved what you want, then watch the practical video tutorial below.

Option two

There may be situations in which even a completely correct algorithm for downloading and installing the d3dx9_31.dll file did not solve the problem. It is possible that in addition to this dll-file, there are no other ones. In this case, the most effective way to solve the problem with the lack of files such as d3dx9_31.dll is to install DirectX.

To do this, you need to do the following:

1.Download the web installer;

2. Run it;

3. Agree with everything that the installer suggests to do (this is easier especially for inexperienced PC users)

4. Restart your computer.

This method is simpler and in some ways even more effective than the previous one. But besides the obvious advantages, it also has a disadvantage - a higher traffic consumption. Indeed, in this case, not one file is downloaded, but much more, so make sure that you really need all these files, and not just d3dx9_31.dll.

When choosing this particular solution, the set algorithm of actions will be performed by the program automatically. Here you are guaranteed a 100% successful result. You can also try to update the video card drivers for greater reliability.

A practical video tutorial on installing DirectX will help you fill any gaps in your understanding of how to use this, in fact, not tricky program.

To better understand which of the methods suits you, in addition to what is written, you can familiarize yourself with the comparative table illustrating the algorithms for the actions of both methods.

As you have probably already seen, the second method is much easier in terms of the number of actions, but more expensive in terms of traffic. If you have the time, we recommend that you try the first option first. It is also effective, but it is designed for only one d3dx9_31.dll library.

If the result is not achieved, then go to the second method. In any case, the goal will be achieved, and you can have a good time playing the long-awaited game. Plus, you'll add to the list of your custom skills.

Sometimes d3dx9_31.dll and other DLL system errors can be related to problems in the Windows registry. Several programs can share the same d3dx9_31.dll file, but when these programs are uninstalled or changed sometimes orphaned (invalid) DLL registry entries are left behind.

Basically, this means that while the actual path to the file may have changed, its incorrect former location is still recorded in the Windows registry. When Windows tries looking up these incorrect file references (file locations on your PC), d3dx9_31.dll errors can occur. In addition, malware infection may have corrupted the registry entries associated with The Sims Castaway Stories. Thus, these invalid DLL registry entries need to be repaired to fix the root of the problem.

Manually editing the Windows registry to remove invalid d3dx9_31.dll keys is not recommended unless you are PC service professional. Errors made while editing the registry can cause your PC to malfunction and cause irreparable damage to your operating system. In fact, even a single comma in the wrong place can prevent your computer from booting!

Because of this risk, we highly recommend using a trusted registry cleaner such as WinThruster (Developed by Microsoft Gold Certified Partner) to scan and repair any d3dx9_31.dll-related registry problems. Using a registry cleaner automates the process of finding invalid registry entries, missing file references (like the one causing your d3dx9_31.dll error), and broken links within the registry. Before each scan, a backup copy is automatically created, allowing you to undo any changes with one click and protecting you from possible damage to your computer. The best part is that fixing registry errors can dramatically improve system speed and performance.

Warning: Unless you are an experienced PC user, we do NOT recommend manually editing the Windows registry. Incorrect use of the Registry Editor can lead to serious problems and require you to reinstall Windows. We do not guarantee that problems resulting from incorrect use of Registry Editor can be fixed. Your use of the Registry Editor is at your own risk.

To manually repair your Windows registry, first you need to create a backup by exporting a portion of the registry related to d3dx9_31.dll (eg.The Sims Castaway Stories):

1. Click the button To begin.
2. Enter " command" in search bar ... DO NOT PRESS YET ENTER!
3. Holding the keys CTRL-Shift on the keyboard, press ENTER.
4. A dialog box for access will be displayed.
5. Click Yes.
6. The black box opens with a blinking cursor.
7. Enter " regedit" and press ENTER.
8. In the Registry Editor, select the d3dx9_31.dll-related key (eg.The Sims Castaway Stories) you want to back up.
9. On the menu File choose Export.
10. In the list Save to select the folder where you want to save the The Sims Castaway Stories backup key.
11. In field File name type a name for your backup file such as "The Sims Castaway Stories Backup".
12. Make sure in the box Export range value selected Selected branch.
13. Click Save.
14. The file will be saved with extension .reg.
15. You now have a backup of your d3dx9_31.dll-related registry entry.

The next steps for manually editing the registry will not be described in this article, as they can most likely damage your system. If you would like more information on manually editing the registry, please see the links below.

DLL file description: Microsoft DirectX for Windows
Possible DLL error: d3dx9_31.dll is missing
Compatible operating system: Windows 7, Windows 8
Our directory contains the following versions of this library:

How to download and install d3dx9_31.dll

Open the zip file downloaded from the site. Extract d3dx9_31.dll to a folder on your computer. We recommend you unpack it into the directory program, requesting d3dx9_31.dll. If this does not work, you will have to extract the d3dx9_31.dll to your system directory. By default this is:

C: \\ Windows \\ System (Windows 95/98 / Me)
C: \\ WINNT \\ System32 (Windows NT / 2000)
C: \\ Windows \\ System32 (Windows XP, Vista, 7)

If you are using a 64-bit version of Windows, You should also put the d3dx9_31.dll C: \\ Windows \\ SysWOW64 \\. Make sure you overwrite the existing files (but don't forget to back up the original file). Reboot your computer. If the dll error persists, try the following: Open the Start menu and select Run. Type CMD and press Enter (or if you are using Windows ME, type COMMAND). Type regsvr32 d3dx9_31.dll and press Enter.

Attention! It is very easy to download d3dx9_31.dll from the Internet, however, there is a good chance your computer infected with malicious code. Please check ALL files downloaded from the Internet with an antivirus! The site administration is not responsible for the performance of your computer.

Also note that each file has a version and bitness. DLL files with the same name can be both 32-bit and 64-bit. Installing DLL files into the system does not help in 100% of cases, but generally problems with programs and games are solved with such a simple method. Most often you encounter DLL errors in the operating system. Some libraries come with Windows and are available for all Windows programs. Replacing DLL files from one version to another allows you to independently grow the system without affecting application programs. You can learn more about what a dll is from the original source - what is a dll.

DLL error? Our specialists will help!

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