File Extension Library


.DLL File Extension

  • Developer by: Microsoft
  • Category: System Files
  • Format: Binary

What is an .DLL file?

.DLL file extension is created by Microsoft. .DLL has been classified as System Files. The format of .DLL file is Binary.

.DLL is Dynamic Link Library

A DLL file is a compiled library that contains a set of procedures and/or drivers that are referenced and executed by a Windows program. It allows multiple programs to access shared functions through common libraries. DLL files are "dynamically linked" into a program at runtime, meaning they are only loaded as needed.

Many DLL files are provided with the Windows operating system, and others are included by Windows programs. They allow various program functions, such as communication with external devices and hard disk input and output. They may also be referenced by Mac cross-platform applications.

Deleting or modifying the contents of a DLL file may cause errors within the program that references the file. For this reason, DLL files generally should not be opened or edited. However, if an application tries to access a dll file that has been corrupted or is missing, that program will no longer work. In this case, installing a new version of the DLL file may be the easiest option.

DLL errors in Windows?

DLL-Files.com Client can fix DLL errors.

Common DLL Filenames

mfc42u.dll - A Microsoft Foundation Class (MFC) library required by some Windows programs to run. This DLL is included with Windows XP, Windows Vista, and Windows 7 and is most often located in the C:\Windows\System32\ directory. If you try to open a program and Windows reports that you're missing mfc42u.dll, likely your Windows installation has been damaged. You can use a system restore point or your factory system repair disc to fix the issue. Other related files include mfc42u.dll, mfc40.dll, and mfc40u.dll.

mfc80u.dll - An MFC library required by some Windows programs created with Visual C++ 2005. If you're missing this file, you can install the Microsoft Visual C++ 2005 Redistributable Package to install it. Programs that use this DLL generally install it because it is not included with Windows by default. Other DLLs installed with the package include msvcr80.dll, msvcm80.dll, msvcp80.dll, mfc80.dll, mfcmifc80.dll, and mfcm80.dll.

mfc90u.dll - An MFC library required by some Windows programs created with Visual C++ 2008. If you're missing this file, you can install the Microsoft Visual C++ 2008 Redistributable Package to install it. Programs that use this DLL generally install it because it is not included with Windows by default. Other DLLs installed with the package include msvcr90.dll, msvcm90.dll, msvcp90.dll, mfc90.dll, mfcmifc90.dll, and mfcm90.dll.

mfc100u.dll - An MFC library required by some Windows programs created with Visual C++ 2010. If you're missing this file, you can install the Microsoft Visual C++ 2010 Redistributable Package to install it. Programs that use this DLL generally install it because it is not included with Windows by default. Other DLLs installed with the package include msvcr100.dll, msvcm100.dll, msvcp100.dll, mfc100.dll, mfcmifc100.dll, and mfcm100.dll.

List of all softwares that can open the Dynamic Link Library
Windows
DLL-Files.com Client
Microsoft Windows
Microsoft Visual Studio 2017
Microsoft Visual FoxPro
Resource Hacker
File Type 2 DLL Dynamic Web Page
Category: Web Files

Web page generated dynamically when accessed by a user; may incorporate server-side scripts, such as Perl or VB scripts that generate the HTML for the Web page.

Web pages with DLL file extensions are typically hosted on Microsoft IIS Web servers. The DLL extension must be mapped to the correct scripting engine on the server in order for the page to be processed correctly.

How to Open .DLL file on different platforms

Open .DLL File on Windows

  • Right-click a .DLL
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .DLL file and Select check box "Always use this app to open .DLL files" Press "Ok"

Open .DLL File on Mac

  • Right-click (or Ctrl + Left-click) the .DLL file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .DLL File on Linux

Right click on the .DLL file, choose "Open with" and select a program from the list above

Open .DLL File on iPhone

Select a file. If you don't see an application to open the .DLL file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .DLL File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .DLL files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .DLL files

  1. You need to update the application that you normally use to open .DLL files. Only the latest version of the software supports the current .DLL file format
  2. You need to check the .DLL file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)