QuickBooks is a powerful accounting software used by businesses to manage their financial transactions. However, users may encounter errors while using QuickBooks, and one such error is QuickBooks Error 429. This error typically occurs when there is a problem with the ActiveX component of QuickBooks. In this guide, we will explore the causes of QuickBooks Error 429 and provide step-by-step solutions to help you resolve it. Additionally, we will address frequently asked questions related to this error.

How To Fix QuickBooks Error 429?
How To Fix QuickBooks Error 429?

1. Understanding QuickBooks Error 429:


QuickBooks Error 429 is an error code that occurs when there is an issue with the ActiveX component in QuickBooks. This error prevents users from accessing certain features or functions within the software.

Read Also : How To Fix QuickBooks Error 4119?

2. Causes of QuickBooks Error 429:


QuickBooks Error 429 can be caused by various factors, including:

  • Corrupted or damaged ActiveX component files.
  • Incomplete or improper installation of QuickBooks.
  • Windows system files or QuickBooks-related files being deleted or damaged.
  • Outdated versions of QuickBooks or Windows.
  • Conflicts with antivirus or firewall software blocking QuickBooks processes.

Read Also : How To Fix QuickBooks Error 41?

3. Solutions to Fix QuickBooks Error 429:


3.1 Solution 1: Repair QuickBooks:

Performing a repair of the QuickBooks installation can help fix any issues with the software. Follow these steps:

  • Close QuickBooks and any other open programs.
  • Press the Windows + R keys simultaneously to open the Run dialog box.
  • Type “appwiz.cpl” in the Run dialog box and press Enter.
  • In the Programs and Features window, locate QuickBooks and select it.
  • Click on the “Repair” or “Change” option and follow the on-screen instructions to repair QuickBooks.
  • Once the repair process is complete, restart your computer and open QuickBooks again.

3.2 Solution 2: Update Windows and QuickBooks:

Keeping your Windows operating system and QuickBooks software up to date is important to resolve compatibility issues. Here’s what you need to do:

  • Press the Windows key on your keyboard and type “Windows Update.”
  • Select “Check for updates” and let Windows search for any available updates.
  • Install any pending updates and restart your computer if prompted.
  • Open QuickBooks and go to the Help menu.
  • Select “Update QuickBooks” and follow the on-screen instructions to download and install the latest updates for QuickBooks.
  • Restart QuickBooks after the update process is complete.

3.3 Solution 3: Re-register the Affected DLL Files:

Re-registering the DLL (Dynamic Link Library) files associated with QuickBooks can help resolve QuickBooks Error 429. Follow these steps:

  • Close QuickBooks and any other open programs.
  • Press the Windows + R keys simultaneously to open the Run dialog box.
  • Type “cmd” in the Run dialog box and press Enter to open the Command Prompt.
  • In the Command Prompt window, type the following commands one by one and press Enter after each command:
    • regsvr32 /u msxml.dll
    • regsvr32 msxml.dll
    • regsvr32 /u msxml2.dll
    • regsvr32 msxml2.dll
    • regsvr32 /u msxml3.dll
    • regsvr32 msxml3.dll
    • regsvr32 /u msxml4.dll
    • regsvr32 msxml4.dll
  • After executing the commands, restart your computer and open QuickBooks again.

3.4 Solution 4: Run QuickBooks Install Diagnostic Tool:

The QuickBooks Install Diagnostic Tool can help identify and fix installation-related issues with QuickBooks. Follow these steps:

  • Download and install the QuickBooks Install Diagnostic Tool from the official Intuit website.
  • Run the tool and let it scan for any issues.
  • Once the scan is complete, restart your computer and open QuickBooks.
  • Check if the error is resolved. If not, proceed to the next solution.

3.5 Solution 5: Disable Antivirus and Firewall Temporarily:

Antivirus and firewall software can sometimes interfere with QuickBooks processes, causing Error 429. Temporarily disabling them can help identify if they are the cause. Here’s how:

  • Open the antivirus or firewall software installed on your computer.
  • Locate the settings or preferences section and disable the antivirus and firewall temporarily.
  • Restart your computer and open QuickBooks to check if the error is resolved.
  • If the error no longer occurs, you may need to configure your antivirus or firewall to allow QuickBooks processes.

Read Also : How To Fix QuickBooks Error 404?

4. Frequently Asked Questions (FAQs):


4.1 What is QuickBooks Error 429?

QuickBooks Error 429 is an error code that occurs when there is a problem with the ActiveX component in QuickBooks. It prevents users from accessing certain features or functions within the software.

4.2 Why does QuickBooks Error 429 occur?

QuickBooks Error 429 can occur due to various reasons, including corrupted ActiveX component files, improper installation, deleted or damaged system files, outdated versions of QuickBooks or Windows, and conflicts with antivirus or firewall software.

4.3 How can I resolve QuickBooks Error 429?

To resolve QuickBooks Error 429, you can try repairing QuickBooks, updating Windows and QuickBooks, re-registering the affected DLL files, running the QuickBooks Install Diagnostic Tool, and temporarily disabling antivirus and firewall software.

4.4 How can I prevent QuickBooks Error 429 in the future?

To prevent QuickBooks Error 429, make sure to keep your QuickBooks software and Windows operating system up to date, perform regular maintenance tasks such as repairing QuickBooks installations, and configure your antivirus or firewall software to allow QuickBooks processes.

Read Also : How To Fix QuickBooks Error 403?

5. Conclusion:


QuickBooks Error 429 can be frustrating, but by following the solutions provided in this guide, you can resolve it and get back to using QuickBooks without any issues. It is important to understand the causes and implement the appropriate solutions to fix the error. If the problem persists, it is recommended to seek further assistance from QuickBooks support or consult with a professional.

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