How to register or re-register a DLL file in Windows 10

Have you ever encountered a Windows problem where you need to register a DLL file on your computer? A DLL file, also known as a dynamic link library, is a file containing functions used by multiple applications.

For example, Microsoft Office has hundreds of DLL files that can be used between different Office programs to perform certain functions, such as spell checking, etc. Multiple programs can load the same DLL at the same time.

If you need to register a DLL due to a corruption or installation error, you can do it manually using the method described below.

What causes DLL file error in Windows 10

Sometimes you might have a problem running a program or game and get an error message in the DLL file. Sometimes this can happen in Windows 10 because it is disabled for some unknown reason.

Sometimes you just need to run the following command to reregister your .dll files in Windows 10.

  • If the .dll file is usually missing on your system, and this is the reason why you get the .dll file error message, this will not solve the problem.
  • Unfortunately, if the .dll file is corrupt, it will not solve the DLL warning window either.

How to fix a DLL file error in Windows 10

There are two ways to save or re-save a DLL file. The first method allows you to save them all at once. Use this method to save DLL files if you don’t know the name of the file that is causing you problems.

The second method targets a specific DLL file and should be used if you know which file is causing the problem.

Register all DLL files

To re-register or register DLL files, do the following.

  1. Open a command prompt with administrator privileges.
  2. Run the following command. This command registers DLL files that are in the path specified in the command.
    For %x in (c:windowssystem32*.dll) do regsvr32 %x
  3. If you want to register or re-register all DLL files, regardless of where they are located on the Windows drive, run the following command with administrator privileges.
    For %1 in (*.dll) do regsvr32 /s %1

Saving a single DLL file

If you know the name of the file you want to save, i.e., the file you are having trouble with, you can save just that file.

  1. Open a command prompt with administrative privileges.
  2. Run the following command and replace part of the path and name with the actual path and name of the DLL file you want to reregister.
    regsvr32 /u “dll file path and name”.

Alternative solutions

Registering a DLL file does not solve all problems with it. Sometimes the DLL file is not the cause of the problem, but just a manifestation of it. The problem may be with the library itself or with the application. In this case, you should try uninstalling and reinstalling the application or uninstalling and reinstalling the library in use.

It may also be useful to update the library if a newer version is available. Finally, make sure that the library version is correct for the application.

You can check the application’s requirements to see which libraries or frameworks are needed to run the application.

Frequently Asked Questions

To register a .dll file in 64 bit Windows 10, you can check if it works by following these steps: Go to the search box and type cmd, right-click on the command prompt and select Run as administrator. In the command window, type the following command and press Enter - regsvr32 (dll name)

  1. Run a third-party DLL fixer.
  2. Run the SFC scanner.
  3. Run DISM.
  4. Manually load the DLL file.
  5. Install DirectX.
  6. Reinstall Visual C++ Redistributables.
  7. Disable or uninstall your antivirus program.
  8. Perform an onsite update.

  1. Click Start -> Run (or use Windows command line: Search -> CMD -> right click - Run as administrator).
  2. Type REGSVR32 /U "C:BlackbaudDLL [filename.dll]". For example, to unregister SQLDMO.dll, type: REGSVR32 /U "C:Program FilesMicrosoft SQL Server80ToolsBinnSQLDMO.dll"
  3. Click OK.

  1. First click Start, then Run.
  2. Now all you have to do to register a DLL file is enter the regsvr32 command and then the path to the DLL file.
  3. Now click OK and you should get a confirmation message that the DLL has been successfully registered.