Sometimes d3dx9_30.dll and other system errors DLL errors may be related to problems in the Windows registry. Several programs can use the d3dx9_30.dll file, but when those programs are uninstalled or modified, sometimes "orphaned" (incorrect) DLL registry entries are left behind.

Basically, this means that while the actual path of the file may have changed, its incorrect former location is still recorded in the Windows Registry. When Windows tries to look up these incorrect file references (file locations on your computer), d3dx9_30.dll errors can occur. Additionally, a malware infection may have corrupted the registry entries associated with Spiderman 3. Thus, these corrupted DLL registry entries need to be fixed to fix the problem at the root.

Manually editing the Windows registry to remove invalid d3dx9_30.dll keys is not recommended unless you are a PC service professional. Mistakes made when editing the registry can render your PC inoperable and cause irreparable damage to your operating system. In fact, even one comma placed 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_30.dll-related registry problems. Using a registry cleaner, you can automate the process of finding corrupted registry entries, missing file references (such as the one causing the d3dx9_30.dll error), and broken links within the registry. Before each scan, a backup copy, which allows you to undo any changes with one click and protects you from possible damage to your computer. The best part is that eliminating 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. Using Registry Editor incorrectly can cause serious problems and require Windows reinstallation. We do not guarantee that problems resulting from incorrect use of Registry Editor can be corrected. You use Registry Editor at your own risk.

Before manually restoring Windows registry, you need to create a backup by exporting the part of the registry associated with d3dx9_30.dll (for example, Spiderman 3):

1. Click on the button Begin.
2. Enter " command" V search bar... DON'T CLICK YET ENTER!
3. While holding down the keys CTRL-Shift on your 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_30.dll-related key (eg. Spiderman 3) you want to back up.
9. On the menu File select Export.
10. On the list Save to Select the folder where you want to save your Spiderman 3 backup key.
11. In field File name Enter a name for the backup file, for example "Spiderman 3 backup".
12. Make sure the field 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_30.dll-related registry entry.

The following steps for manually editing the registry will not be described in this article, as they are likely to damage your system. If you would like more information about editing the registry manually, please check out the links below.

The error related to the dynamic library file d3dx9_30.dll is one of the most common. Users can encounter it when launching most games and some programs designed for 3D modeling. This is because this component is responsible for 3D graphics and is part of the DirectX 9 package. The article will tell you what needs to be done to resolve the error.

It was said above that the d3dx9_30.dll library belongs to the DirectX 9 program. From this we can conclude that in order to resolve the error associated with the absence of the previously mentioned DLL file, you will need to install this very program. But this is far from the only one possible way getting rid of the error. Everything will be described in detail below.

Method 1: DLL-Files.com Client

This application serves as an excellent tool for finding and installing dynamic libraries missing from the system. With its help you can get rid of the error in a couple of minutes "The file d3dx9_30 is missing".

After installing the DLL-Files.com Client program on your computer, run it and follow these steps:

Method 2: Install DirectX 9

By installing DirectX 9, you will also achieve the desired result. Now we will discuss in detail how to do this, but first, download the program installer to your computer.

For this:

After clicking, the installer window will close, and all DirectX 9 components will be installed, along with the necessary dynamic library d3dx9_30.dll. By the way, this method provides a 100% guarantee of eliminating the error in question.

You can fix the error without any additional software, on your own. To do this, you need to download the d3dx9_30.dll file to your computer and move it to the folder "System32" or "SysWOW64"(depending on the system capacity). Here is the exact path to these directories:

C:\Windows\System32
C:\Windows\SysWOW64

The easiest way is to open two folders in Explorer (the folder with the library and the folder where you want to move it) and drag the d3dx9_30.dll file to the desired directory, as shown in the image.

If you use operating system, which was released before Windows 7, then the final directory may differ. More details about this are written in a special article on our website. You may also need to register the moved library; do this if the error persists. A step-by-step guide to registering dynamic libraries is also available on our website.

The operating system from Microsoft is the most common environment for PCs and laptops. Its extraordinary capabilities, as well as simplicity and convenience, are just some of the factors that have made the system so popular. Its inexhaustible gaming capabilities made one of the main contributions to its popularization, as well as the development of all PC gaming.

A large selection of games, add-ons and mods, including the flexibility of settings, cannot be overestimated. But, unfortunately, not everything is so ugly. The fly in the ointment is the numerous errors that may arise when trying to launch the long-awaited game. Error: “The file d3dx9_30.dll cannot be found or is damaged. The game program cannot be opened and launched” – often occurs before launching Titan Quest, NFS: Pro Street or Stalker.

What is the file "d3dx9_30.dll"?

A missing or corrupted "d3dx9_30.dll" file may appear to be unknown. This is partly true. After all, “d3dx9_30.dll” is nothing more than a dynamic library included in Microsoft package DirectX 9!

As you know, DirectX is a powerful platform (API) that greatly simplifies the optimization work of developers game programs. It is responsible for image reproduction, sound and music output, and also ensures the quality of animation, physics and control. An error in “d3dx9_30.dll” makes DX9 work incorrectly, and therefore it is impossible to start the game in normal mode. Among the causes of the malfunction are:

• absence from computer installed DirectX 9;
• errors in file system OS;
• action of viruses;
• erroneous deletion of the library by antivirus software;
• and other.

How to solve the problem effectively?

There are two ways to fix this annoying error:

1. Manual installation and configuration (including using command line) library "d3dx9_30.dll".
2. Installing a working version of DirectX 9.

Despite all the difficulties of the first method, its drawback is the lack of guarantees. Whereas the second one: simple, does not require much time and is effective. To do this, you need to download DirectX 9 (32 bit 64 bit) for Windows 10 using a direct link without registration and completely free (no SMS and no viruses).

Then you need to install the software package: run the installer file, agree to the terms of use and click “Next”.

We are waiting for the installation to complete.

The installation is complete (as is the solution to the problem).

Gamers often experience the problem of missing a certain DLL file. For example, fans of sports simulators often decide to download d3dx9_30.dll for PES 2013 so that their favorite football game can start again on the computer.

Using this file you can solve the problem with the absence of d3dx9 files in all some games and programs. Let's try to figure out how to install it and what needs to be done for this.

Reasons why applications fail

First of all, the d3dx9_30.dll file is a set of libraries responsible for the multimedia component of applications. It is installed automatically along with a particular game. And yet there remains a high probability of failure when at a certain point. The reasons may be the following:

1. Virus or malicious software, which deleted the file
2. Accidental deletion from computer
3. The application is unable to find the path to the file

A method that does not guarantee a solution to the problem

If the previous method did not help, we recommend downloading the d3dx9_30.dll file from the mail.ru/ cloud. Next you need to throw it into the desired folder. There is a clear distribution here: if you have an x32-bit system installed on your computer, find it on the disk with installed Windows 7, 8 or 10 System32 folder and place the downloaded file in it.

If you installed an x64-bit system, then perform exactly the same manipulations, just copy the file downloaded from our website to the SysWOW64 directory. At the end, don't forget to restart your computer and try running Flatout 2, PES 2013 or any other game.

Right-click on the Start menu and select Run. Then in the next stage, enter regsvr32 d3dx9_30.dll and click “Confirm”. Then restart your computer and try running the application again. Everything should already be working.

Another method is to install DirectX. from our website and install it. You can be sure that after these procedures everything will start without errors and you will be able to enjoy the gameplay again.

It seems that someone wants to download d3dx9_30.dll for Windows 7 or 10 to get rid of the error: “The program cannot start because d3dx9_30.dll is missing from the computer.” It doesn’t take long to download a dynamic library and place it in the right place, but there are several nuances:

• almost all resources offering to download DLL libraries for free are disingenuous, passing off malware as necessary files, sending the user to file hosting sites with advertising, etc.;
• Even if you get the original DLL and know where to put it, this does not guarantee a solution to the problem. The error may appear due to the absence of d3dxdll and subsequent DirectX9 components, up to 43.

We will show you how to solve all this quickly and without the risk of infecting your PC. At the same time, we’ll tell you what role this file runs on Windows.

This is the component that is loaded into RAM only when the application requires it. It can be used by a significant number of games and programs, including simultaneously. Most of the libraries common to many software products are stored in system directories (system32 and syswow64 for Windows 64 bit).

Modularity will save disk space (you don’t need to store the necessary DLLs in the folder with each game) and RAM.

D3dx9_30.dll is part of the most common API for programming in Windows environment and is used, by and large, in games and multimedia applications. It includes 330 functions, a lot of constants and procedures for working with graphic information(shaders, textures, transparency, overlaying images on models).

Naturally, without so much important file Not a single game will run on PC: PES, NFS, Wolfenstein, CoD. Let's get one.

The file is included in DirectX version 9, and you could download it and forget about everything. But your video card most likely supports a newer edition of the API, up to 12, so we’ll focus on downloading the component’s online installer. It will download all the DirectX elements missing on the PC and place them in the required system directory, registering them in the registry. Moreover, both DX 10 and DX 11 will be updated, if they are supported.

1. We go to the page and click on the installer download button.

1. We run the resulting installer and confirm its safety.

1. We refuse to install the search bar from Microsoft and wait for the program to determine what should be downloaded.

1. Click “Next” and wait for the files to download.

And there is no danger of infecting your computer.

Did not help

In some cases, repackaging masters installation files programs, creating game repacks and portable versions software manage to make their products look for the dlls they need in the directory where they themselves are stored.

In this case, the missing libraries (and sometimes there are several of them) need to be placed in the folder with the executable file.

1. Download the archive with the component we need.

If you want to make sure it's clean, go to VirusTotal.

1. Using the context menu (right click) of the archive, unpack it.

1. If you know where the exe file is, we register or select the path to it.

Otherwise, open the properties of the shortcut and copy it from the “Object” line to the last character “\”.

1. Click “Extract”.

There is no need to register - the library will be detected and picked up by the game/program automatically.

Video

To make it easier to understand what needs to be done, watch the video below.