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How to Open a DLL File Online in Windows and MAC

  • File type: system data files
  • Description: dynamic link library
  • Developer: Microsoft
  • Format: binary data


Problems opening .dll files? If you have a file with the .dll extension and you don't know how to open it you are in the right site. Only certain programs can read, view, edit or convert files with .dll extension.

Try the programs we recommend. You have to download the software (viewers, readers) to view it or convert it to another format file extension.

  • What is a .dll file?
  • How can I open a .dll file?
  • What programs (editors, viewers, readers or installers) can edit, view and launch?
  • How to convert .dll files to another format.


What is a DLL File extension

File extension dll stands for Dynamic-Link Library. These contain codes that are used by different applications. The codes in these can be edited by the user without changing the whole program or application.

They can also be used in the form of plug-ins. Which are extended features that can be downloaded or purchased.

When different applications or programs have to do the same tasks at one time then that particular action or task is placed into a .dll file which makes it easy to be used by different programs.

This can be a benefit as it saves memory.  They are automatically provided by Windows and allow different programs or functions.

file extension dll

Normally these are not to be opened due to them being sensitive as they can cause errors. Editing them or deleting them can lead to errors and many programs not being performed. There are some programs that open this format:

  • Microsoft Visual Studio 2017.
  • Microsoft Visual FoxPro.
  • Resource Hacker.
  • Client.

These can be opened with special software and with updated functions. It can be opened and read by the user. It holds multiple codes and functions or actions in one.

dll schema


Programs to open DLL files

You can always use the old school double-click method. If it does not open then it means that a proper software for opening up dynamic link library files is not installed in your PC.

If it is not opening these then it can also mean that your PC is not reading those correctly and is using the wrong software to run them.

Sometimes opening .dll is not the best option and letting them remain untouched is better. As some of this format contain Trojans in them which can make your computer infected or damage to your whole system.



  • client
  • Microsoft Visual Studio 2019
  • Microsoft Windows
  • Microsoft Visual Fox Pro
  • 7-zip
  • Web browsers


  • Web browsers



  • Web browsers


.DLL related extensions

  • .SYS


How to open DLL files


Instructions step by step method 1 - open from the file

  1. Find you dll file in your device.
  2. Double click on it in desktop computer, tap on it with a mobile device.
  3. On the drop down menu open with list select a viewer for example Visual Studio 2019.
  4. Confirm.
  5. View the file in the software viewer.


Instructions step by step method 2 - open from the programs

  1. Open one of the dll viewers or editors installed:
    1. client
    2. Microsoft Visual Studio 2019
    3. Microsoft Windows
    4. Microsoft Visual Fox Pro
    5. 7-zip
    6. Web browsers
  2. From the application go to the menu of files to open the .dll from your device.
  3. Now you can view this format in the application.


Instructions step by step method 3

One of the methods according to Wiki How can be:

  1. Download and install a compiler.
  2. Open the .DLL in the compiler.
  3. Use the Assembly Explorer to browse the nodes.
  4. Double-click a node to view its code.
  5. Export the project to Visual Basic to edit the code.
  6. Edit the code in Visual Studio.

They are very important as it can be said because they save memory and help all the programs while working in the background.

They help several parts of the programs to perform actions or procedures of the same type.



They are not to be opened by the normal user because if they are modified or played with then they can cause lot errors in the functioning of certain programs which can also lead to crashing of applications.

There is not any specific way to open a dynamic link library file but if you want to edit or if someone sends it to you through mail then you can use the different programs that were mentioned above.

Messing or editing it can actually lead to severe damage which means it is safe not to open them.  


Associate the extension to a program

You can associate the .dll extension to the appropiate software. This will ensure every time you are opening a enl file the associated program will launch by default.

To do it just double click on the file and select always run with this program option (Always use the selected program).


.DLL converters

How is the conversion of  DLL format?

You can convert it online to ZIP for example using this converter


Can't open a DLL file?

If you have problems opening it you can check the following tips. You must ensure you have all what you need:

  1. Check that you have at least one of the programs need to manage these files.
  2. Check if you have drivers updated.
  3. Get the latest versions.
  4. Reinstall the sotware .
  5. Ensure you have all the computer privileges.


How to create a .DLL file

You have to create a dynamic link library. These are the required steps to do it with visual studio:

  1. Open the program Visual Studio
  2. Go to the menu. Click on File -> Project to create a new project
  3. Name your file.
  4. Set language to C++
  5. Then, Set platform to Windows
  6. Set project type to library
  7. Select Dynamic link library
  8. Name it
  9. Click on create
  10. Add a header (check microsoft website for more information on this).
  11. Add a CPP File
  12. Click on Build
  13. Build solution
  14. You can get more details here


How to Delete

You can delete your dynamic link library file. However as these are system files it is strongly recommended to not delete it. Your windows system can crash without required libraries.


About DLL files

In this website you learn what is a file with the .dll suffix, how to open, view, edit and convert it.

The dynamic link library file format can be opened in windows, mac and linux with the programs above.

If you have any comment or need help about the DLNL file or related software send it to us through the contact page.