Simply explained: what is a DLL file?

Windows users have certainly noticed DLL files, of which there are many different files in the Windows directory. What exactly is a DLL fileAND What are they for And what problems can occur in relation to DLL files is available in this article.

1. DLL files are the corner stone of the modular structure of Windows

A great advantage of Microsoft Windows and other modern operating systems is that Modular structure. Many system functions are found Outstring outsourcing of your programthat also like Dynamic Libary linkDll shortly.

The use of DLL files has several advantages for an operating system / program:

• An unnecessary library of programs did not take a RAM and must first be recharged on request.
• The libraries of the individual programs can be «patchate» or magazines much more easily, for example to implement new functions or to correct errors.
• All programs always access the same bookcase as the program. As a result, it is not necessary to develop a new one for each software.

Die Program bookcases can consist of executable Exe files or DLL fileswhich substantially contain how the executable programs and their program of the program behave.

Good to know: Activex control file (.ocx), control control file (.cpl) or device driver files (.rv) are also DLL files, but they have a different end.

Die DLL files also have a disadvantage. Of many There are different versions And not all programs face each version of a DLL file, as they can know different commands and routines. From Windows 95 to Windows XP, one of the most common problems was the chaos of the version of various DLL files that the installers of the various programs overwritten.

Recent versions of Windows protect DLL files in the Windows folder and his subordinates Against unauthorized oversche. This in turn means that Special versions of the DLL files have since copied their program folder since then And it is no longer possible to overwrite other programs. This also increases the requirement of space for file installations. DLL files in programs I am also like «Private dll«designated.

2. Information on reading a DLL file

In principle, we recommend that you remove DLL files from the system without reason. However, if you are interested in where the file comes or what is its task, you can do further searches here.

The first source of information is the Property of the file. You can see who the file publisher is via the «digital signatures» tab. In the details tab, you can view more information such as a brief description, file version, etc.

Web sites such as.net file It also gives you more information. Using the example «What is MSVCRT.DLL» you will receive a brief description of the origin and use of the file.

With a decominator like freeeek free, you can open DLL files and take a more close look at the bookcase functions. You can even change the source code via Visual Studio.

3. So it is possible to «install» the DLL files

If Windows needs a routine described in a DLL file, Windows dates back to this routine independently. You have to and you can one DLL files therefore do not open to perform a certain function.

With a defective installer or an uninstaller, however, that can happen The DLL file is still on the system, but Windows has no knowledge. Windows can only access the registered DLL files.

To create a well -known Windows DLL file, you need to record this DLL file. Furthermore Start the command prompt as an administrator and give the command there

Regsvr32 c:windowssystem32msvcrtl.dll

One, so the path and the name only serve as an example here.

Windows therefore reports through the command prompt that the Successful DLL registration era. If this has not worked, the path is not correct to the DLL file.

On the contrary, you can also die a DLL.

The command is also

Regsvr32 /U c:windowssystem32msvcrtl.dll

necessary.

3.1. Where do I take a dll file?

If a DLL file is missing on the system, Do not simply load them from «somewhere» from the internet. The function of origin or precise of the unknown DLL file is unknown. It can also be a virus/trojan. The common source for download is the Dll-files.com page. The origin of their downloads is not certified. The use is therefore at its own risk.

Directx 9 under Windows 10: Many older games than Windows XP times create an error message during the installation or start of Windows 10 that the file is missing from DirectX technology in version 9 that requires these games. To correct this error, it is also possible to install Directx9, which was actually for Windows XP, also in Windows 10. There are no compatibility problems because Windows 10 uses a new version of the interface.

Often the search for a DLL file brings you the indication where it comes from. For example, if Coreldraw loses an XY file, there is a good chance that the file has been/should also be installed by Coreldraw. Therefore, look for the DLL file in the program installation files. Good help also provides a package like 7-Zip, which can also open installation files and extract files from it.

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