Fix Error Unable to register the DLL/OCX in Windows 10

Troubleshooting errors on Windows 10 can be a perplexing task, especially when encountering the frustrating “Unable to register the DLL/OCX” error. In this article, we delve into the intricacies of this issue, providing insightful solutions to help you fix it swiftly and effectively.

Causes and Solutions for “RegSvr32 failed with exit code 0x3” Error

If you encounter the “RegSvr32 failed with exit code 0x3” error while trying to register a DLL or OCX file in Windows 10, there are a few potential causes and solutions to consider.

One possible cause is that the DLL or OCX file you’re trying to register is missing or corrupt. To fix this, try reinstalling the file or downloading a fresh copy from a reliable source.

Another potential cause is that the file you’re trying to register requires administrative privileges. To resolve this, right-click on the Command Prompt or PowerShell and select “Run as administrator” before attempting to register the file again.

Additionally, make sure that the file you’re trying to register is compatible with your version of Windows. Some files may only work with specific operating systems.

If none of these solutions work, it’s possible that there may be an issue with your system’s registry. In this case, it’s recommended to seek professional assistance or reach out to Microsoft Support for further guidance.

Remember to always exercise caution when downloading and registering DLL or OCX files from the internet, as they can potentially contain malware.

Resolving the Issue on Windows 10

To fix the error “Unable to register the DLL/OCX” in Windows 10, follow these steps:

1. Press the Windows key + X and select “Command Prompt (Admin)”.
2. In the command prompt, navigate to the location of the DLL/OCX file using the “cd” command.
3. Type “regsvr32 [filename.dll/ocx]” and press Enter to register the file. Replace “[filename.dll/ocx]” with the actual name of the file.
4. If you see a message saying “DllRegisterServer in [filename.dll/ocx] succeeded,” the file has been successfully registered.
5. If you encounter the “DllRegisterServer failed” error, make sure you have administrative privileges and try running the command prompt as an administrator.
6. Additionally, ensure that the DLL/OCX file is not corrupted or missing. You may need to reinstall the application associated with the file or download a fresh copy.
7. Restart your computer for the changes to take effect.

These steps should help resolve the issue with registering DLL/OCX files on Windows 10.

Troubleshooting Steps for Unable to Register the DLL/OCX

If you are unable to register a DLL or OCX file in Windows 10, follow these troubleshooting steps to resolve the issue:

1. Run Command Prompt as an administrator by searching for “cmd” in the Start menu, right-clicking on “Command Prompt,” and selecting “Run as administrator.”

2. Use the regsvr32 command to register the DLL or OCX file. For example, if the file is “mscomctl.ocx,” type “regsvr32 mscomctl.ocx” and press Enter.

3. If you receive an error message stating that “dllregisterserver failed” or if the module was loaded but the call to dllregisterserver failed, try running the command in step 2 again, but this time include the full path of the file. For example, “regsvr32 C:PathToFilemscomctl.ocx.”

4. Ensure that the DLL or OCX file is not being used by any other program. Close any applications that may be using the file, such as Cakewalk, WinSCP, BandLab, or Sonar Platinum.

5. If you encounter an error code such as “isdone.dll” or “unarc.dll” while trying to register the file, search for the specific error code online for further troubleshooting steps.

By following these steps, you should be able to fix the error and successfully register the DLL or OCX file in Windows 10.


regsvr32


Replace `` with the actual name of the DLL or OCX file.
4. Press Enter to execute the command.
5. You should see a confirmation message indicating whether the registration was successful or not.

Please note that the above steps are general instructions, and the success of registration depends on various factors such as file integrity, system architecture, and user privileges. It’s recommended to consult official documentation or seek assistance from experts when troubleshooting registration issues.

Fixing the “RegSvr32 failed with exit code 0x3” Error

To fix the “RegSvr32 failed with exit code 0x3” error when unable to register the DLL/OCX in Windows 10, follow these steps:

1. Open Command Prompt as an administrator.
2. Navigate to the folder containing the DLL/OCX file using the “cd” command.
3. Type “regsvr32 [filename.dll/ocx]” and press Enter.
4. Ensure that the DLL/OCX file is not being used by any other program. Close any relevant applications.
5. Disable any antivirus software temporarily, as it might interfere with the registration process.
6. If the error persists, try registering the DLL/OCX file in Safe Mode.
7. If the issue continues, the DLL/OCX file may be corrupt. Try reinstalling the related software or obtaining a new copy of the file.
8. If none of the above solutions work, seek assistance from technical support or the software developer.

Remember to replace “[filename.dll/ocx]” with the actual name of the DLL/OCX file you are trying to register.