How to register a dll file windows 7 x64. Installing and registering DLLs on Windows

Sometimes REGSVR32.DLL and other system errors DLL errors may be related to problems in the Windows registry. Several programs can use the REGSVR32.DLL file, but when those programs are uninstalled or modified, sometimes "orphaned" (invalid) 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 PC), REGSVR32.DLL errors can occur. Additionally, a malware infection may have corrupted registry entries associated with Microsoft Visual Basic for Windows. 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 REGSVR32.DLL keys is not recommended unless you are 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 REGSVR32.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 REGSVR32.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 eliminating registry errors can dramatically improve system speed and performance.

Warning: If you are not experienced user PC, we DO NOT recommend manually editing the Windows registry. Using Registry Editor incorrectly may cause serious problems that may require you to reinstall Windows. 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 you manually repair the Windows registry, you must create a backup by exporting a portion of the registry associated with REGSVR32.DLL (eg. Microsoft Visual Basic for Windows):

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 REGSVR32.DLL-related key (eg. Microsoft Visual Basic for Windows) 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 the backup copy of the Microsoft Visual Basic for Windows key.
11. In field File name enter a name for the backup file, such as "Microsoft Visual Basic for Windows backup copy".
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 REGSVR32.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 want to receive more information about manually editing the registry, please see the links below.

After installing various programs or games, you may encounter a situation where, when you turn it on, the error “The program cannot be launched because the required DLL is not in the system” appears. Despite the fact that Windows operating systems usually register libraries in the background, after you download and place your DLL file in the appropriate location, the error still occurs and the system simply does not “see” it. To fix this, you need to register the library. How this can be done will be discussed later in this article.

There are several methods to resolve this problem. Let's look at each of them in more detail.

Method 1: OCX/DLL Manager

OCX/DLL Manager is a small program that can help you register a library or OCX file.

To do this you will need:

1. Click on the menu item "Register OCX/DLL".
2. Select the file type that you will register.
3. Using the button "Browse" specify the location of the DLL.
4. Click the button "Register" and the program itself will register the file.

OCX/DLL Manager can also unregister a library; to do this, select the item in the menu "Unregister OCX/DLL" and subsequently perform all the same operations as in the first case. You may need the undo function to compare results when a file is activated and when it is disabled, as well as during the process of removing some computer viruses.

During the registration process, the system may give you an error indicating that administrator rights are required. In this case, you need to launch the program by right-clicking on it and select "Run as administrator".

Method 2: Run Menu

You can register the DLL using the command "Run" in the start menu of the Windows operating system. To do this you will need to do the following:

Method 3: Command Line

File registration via command line not much different from the second option:

1. Select a team "Run" on the menu "Start".
2. Enter in the input field that opens cmd.
3. Click "Enter".

A window will appear in front of you in which you will need to enter the same commands as in the second option.

It should be noted that the command line window has a function for pasting copied text (for convenience). You can find this menu by right-clicking on the icon in the upper left corner.

Method 4: Open with

Possible mistakes

"The file is not compatible with the installed Windows version» - this means that you are most likely trying to register a 64-bit DLL on a 32-bit system or vice versa. Use the appropriate command described in the second method.

"Entry point not found"- not all DLLs can be registered; some of them simply do not support the DllRegisterServer command. Also, an error may occur because the file has already been registered by the system. There are sites that distribute files that are not actually libraries. In this case, of course, nothing will be registered.

In conclusion, it must be said that the essence of all the proposed options is the same - these are just different methods for launching the registration command - whichever is more convenient for you.

Registering files with *.dll and *.ocx extensions ​

Spoiler: Help (click to open)

• DLL (from the English Dynamic-Link Library - dynamically linked library) - the concept of the operating system Microsoft Windows; dynamic library that allows repeated use by various software applications. ActiveX controls and drivers are sometimes also classified as DLLs. In the UNIX world, similar functions are performed by the so-called. shared objects. The *.dll file format follows the same conventions as the *.exe executable file format, combining code, tables, and resources.
• ActiveX is the name of a group of technologies developed by Microsoft for programming component-based object applications based on the COM model.
• COM (abbreviated from the English Component Object Model) is a model of Microsoft component objects, a standard mechanism that includes interfaces with the help of which some objects provide their services to others; is the basis of many object technologies, including OLE and ActiveX).
• OLE (abbreviated from English Object Linking and Embedding) is the general name (until 1996) of a group of Microsoft object-oriented technologies based on COM (OLE 1, OLE 2, OLE automation, OLE Database, etc.).
• ActiveX control – ActiveX control element; a new name introduced in 1996 by Microsoft for independent programmable components, previously called OLE controls, OCXs, OLE custom controls; unlike the latter, they allow you to work with the Internet.
• OCX (abbreviated from OLE Custom eXtension) – movable controls, OLE custom control, OLE control. To put it simply, *.ocx files are ActiveX controls that perform approximately the same functions as *.dll files.
• OLE custom control – a specialized OLE control element, OLE control.
• OLE control – OLE control elements, programmable application components with an OLE-based interface that makes it easy to include them in other applications; since 1996 called ActiveX control. Synonyms: OCX, OLE custom control.

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How to register *.dll and *.ocx files?

Registration of *.dll and *.ocx files is carried out using the registration server regsvr32.exe (whose disk address is \WINDOWS\system32).

Let's look at the registration methods:

1). Click Start - Run... (or press the win and r buttons at the same time) - enter - regsvr32_ file_name_ - OK.

2). Click Start - Run... - Run a program - cmd - OK. The command interpreter cmd.exe (command line) will start after the system prompt

Code:

C:\Documents and Settings\Username>

enter regsvr32_file_name, for example,

Code:

Regsvr32 Koza.dll

.

3) Use this tweak, which adds “Registration” and “Cancel registration” items to the context menu of DLL and OCX files

Code:

Windows Registry Editor Version 5.00 @="regsvr32.exe \"%1\"" @="regsvr32.exe /u \"%1\"" @="regsvr32.exe \"%1\""

To remove this function from the context menu, use the tweak:

Code:

Windows Registry Editor Version 5.00 [-HKEY_CLASSES_ROOT\dllfile\Shell] [-HKEY_CLASSES_ROOT\dllfile\Shell\Registration] [-HKEY_CLASSES_ROOT\dllfile\Shell\Registration\command] @="regsvr32.exe \"%1\"" [- HKEY_CLASSES_ROOT\dllfile\Shell\Unregister] [-HKEY_CLASSES_ROOT\dllfile\Shell\Unregister\command] @="regsvr32.exe /u \"%1\"" [-HKEY_CLASSES_ROOT\ocxfile\Shell] [-HKEY_CLASSES_ROOT\ocxfile \Shell\Registration] [-HKEY_CLASSES_ROOT\ocxfile\Shell\Registration\command] @="regsvr32.exe \"%1\""

4). If you use the Total Commander file manager, you can register *.dll and *.ocx files using the Total Commander command line.

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regsvr32 parameters:

Regsvr32: ] DLL file

/u - Unregisters a DLL
/s - "Silent" mode; message boxes are not displayed
/i - Calls DllInstall, passing an optional command_string as a parameter,
when used with the /u switch, calls DllUnInstall
/n - Does not call DllRegisterServer; this can be used with the /i switch

Users ask about how to register a dll file in Windows 7 and 8. Usually after encountering errors like “The program cannot start because the required dll is not on the computer.” Let's talk about this.

In fact, registering a library in the system is not such a difficult task (I’ll show you three variations of one method) - in fact, only one step is required. The only mandatory requirement is that you have Windows administrator rights.

However, there are some nuances - for example, even successful DLL registration does not necessarily save you from the “library is not on the computer” error, and the appearance of a RegSvr32 error with a message that the module is not compatible with the version of Windows on this computer or the DLLRegisterServer entry point was not found. does not mean that you are doing something wrong (I will explain what this means at the end of the article).

Three ways to register a DLL in the OS

In describing further steps, I assume that you have found where you need to copy your library and the DLL is already in the folder (and perhaps somewhere else, if it should be there).

Note: below we will describe how to register a DLL library using regsvr32.exe, however, please note that if you have a 64-bit system, then you have two regsvr32.exe - one in the C:\Windows\SysWOW64 folder , the second is C:\Windows\System32. And these are different files, with the 64-bit one located in the System32 folder. I recommend using the full path to regsvr32.exe in each method, and not just the file name, as shown in my examples.

First way is described on the Internet more often than others and consists of the following:

• Press the Windows + R keys or select “Run” from the Windows 7 Start menu (if, of course, you have it enabled).
• Enter regsvr32.exe path_to_file_dll
• Click OK or Enter.

After this, if everything went well, you should see a message stating that the library was successfully registered. But, with a high probability you will see another message - The module is loaded, but the DllRegisterServer entry point was not found and it is worth checking that your DLL is the correct file(as I already said, I’ll write about this later).

Second way consists of launching the command line as administrator and entering the same command from the previous paragraph.

• Run Command Prompt as Administrator. In Windows 8, you can press the Win+X keys and then select the desired menu item. In Windows 7, you can find Command Prompt in the Start menu, right-click on it and select “Run as administrator.”
• Enter the command regsvr32.exe path_to_library_dll(you can see an example in the screenshot).

Again, it's likely that you won't be able to register the DLL on the system.

And the last way, which can also be useful in some cases:

• Right-click on the DLL you want to register and select the “Open with” menu item.
• Click Browse and find the regsvr32.exe file in the Windows/System32 or Windows/SysWow64 folder and open the DLL using it.

The essence of all the described ways to register a DLL in the system is the same, just a few different ways launching the same command - whichever is more convenient. And now about why nothing works out for you.

Why can't I register the DLL?

So, you are missing some DLL file, due to which you see an error when starting a game or program, you downloaded this file from the Internet and are trying to register, but either the DllRegisterServer entry point or the module is not compatible with the current version of Windows, and maybe something else, that is, DLL registration is impossible.

Why does this happen (more on how to fix it):

• Not all DLL files are designed to be registered. In order for it to be registered in this way, it must have support for the same DllRegisterServer function. Sometimes the error is also caused by the fact that the library is already registered.
• Some sites offering to download DLLs actually contain dummy files with the name you are looking for and they cannot be registered, since they are not actually a library.

And now how to fix it:

• If you are a programmer and are registering your DLL, try regasm.exe
• If you are a user and something does not start for you with a message that the DLL is missing on the computer, look on the Internet what kind of file it is, and not where to download it. Usually, knowing this, you can download the official installer, which will install the original libraries and register them in the system - for example, for all files with a name starting with d3d, it is enough to install DirectX from the official Microsoft website, for msvc - one of the versions of Visual Studio Redistributable. (And if a game from a torrent does not launch, then take a look at the antivirus reports, it could have deleted the necessary DLLs, this often happens with some modified libraries).
• Typically, instead of registering a DLL, placing the file in the same folder as the exe file that requires the library works.

Installing a game or heavy application involves automatic installation and registration of the necessary DLLs in the operating system Windows system. DLLs are dynamic libraries that can be accessed multiple times by multiple applications. If an error occurs when a game or program attempts to access a specific DLL, the user will see the message “dllregisterserver entry point not found” or “cannot launch, missing .dll file.” These and other errors indicating problems when accessing a dynamic library can be resolved if you independently register the required DLL file in Windows.

Why does an error occur when accessing a DLL?

DLLs are added to operating system at Windows update and when installing applications. Based on this, we can identify the following main reasons why an error occurs indicating a missing or problem with the DLL file:

• The DLL was not installed. There may be two reasons for this - Windows has not been updated to the current version, and the library comes with one of the latest updates, or the game/application during installation for some reason did not install and register new DLLs.
  Note: Most often, all the necessary DLLs are included in the installation files of the application, and developers do not expect that the necessary components have already been installed on the computer.
• Damage to DLLs. This problem most often occurs if DLLs have been damaged by a virus software or careless user actions, for example, making changes to the registry that led to damage to dynamic libraries.

Most DLLs are installed on the computer along with DirectX, so if, when installing a game or application, you are prompted to update/install DirectX, you do not need to refuse it, otherwise there is a high risk of the error “cannot be launched, the .dll file is missing.”

How to Register a DLL on Windows

If for some reason Windows does not have a DLL required to run games and applications, the user can register it themselves. This can be done in two ways, by first downloading the necessary DLL onto the computer.

Registering DLLs Using the Command Line

To register a DLL existing on your computer via the command line, do the following:

Registering a DLL Using the Run Line

Registering a DLL through the “Run” line is practically no different from actions with the command line. The user needs:

What to do if you can't register a DLL

It is possible that Windows will issue an error when responding to the library registration command, indicating that the module is loaded, but the DllRegisterserver entry point was not found. There are likely other variations of similar errors that prevent the DLL from being registered. Such errors occur for the following reasons:

If you encounter errors when trying to register a DLL, the first step is to try downloading the official component from the vendor to eliminate the possibility of a dummy file. To do this you will need to use search engine and find which system component the problematic DLL belongs to.

In rare situations, problems with registering a DLL may occur if it is not in the same folder as the component or application's executable file.exe. In this case, you need to move the library to the folder with the executable file and try to register it again.