In recent days, many QB users have reported that they are getting an error message: (QuickBooks Error Code 80029c4a Error loading type library/DLL can’t load a dynamic link library DLL) when they tried to open their QuickBooks. In this article, we are going to discuss this error and also know the best possible ways to troubleshoot this error.

Problem: there was an unexpected error reported while trying to run QuickBooks with the company file “name of your company file:

Error Code 80029c4a

Description: Error loading type library/DLL

You may see one of the following error messages given below in the images:

QuickBooks Error Code 80029c4a Error Message -  Screenshot

Or You may get another error message on your screen

QuickBooks Error Code Message 80029c4a - Error loading type library-DLL - Screenshot

If you are also encountering a similar issue, then in that case stick to the article till the end. The user can also consult our QuickBooks error support team, for any kind of professional assistance. Our team of experts and certified accounting professionals will be happy to help you.

You might also read: How to Fix QuickBooks error code 15222?

What is QuickBooks Error Code 80029c4a?

QuickBooks Error Code 80029c4a is an unexpected error that mainly occurs when a user tries to open QuickBooks or a company file. Also, this error can occur when a company file has been damaged or corrupted. This error is also known as a run-time error and it is caused due to many factors. Know the possible causes as well as the troubleshooting steps below.

Symptoms of Error Code 80029c4a in QuickBooks

Let’s start with the possible reasons behind this error.

  • Windows runs slowly or sluggishly.
  • It Crashes the active program window.
  • System “freezes” for a few seconds at a time.
  • Your computer system regularly collapses with Error 80029C4A
  • Windows responds slowly to computer mouse or keyboard input.
  • Error Code 80029c4a may appear throughout the program installation.

Causes of QuickBooks Error 80029c4a

  • The QuickBooks desktop file/files are corrupted, missing, or damaged.
  • This error code generally occurs when a company file has been corrupted or is unable to locate when users try to open their software.
  • Your antivirus defender has incorrectly marked a QB Desktop file as being infected with several Trojans or Malicious.
  • There is corruption in the Windows registry.
  • An Incomplete Installation of QuickBooks Pro software.
  • Error Code 80029c4a takes place while Windows startup or shutdown, or perhaps during the installation of the Windows operating system.
  • QuickBooks component doesn’t start properly or the DLL files are missing or corrupted.

Methods to Fix QuickBooks Error Code 80029c4a

Checkout few quick hacks to resolve QuickBooks Error Code 80029c4a through this infographic:

Resolve QuickBooks Error Code 80029c4a - Infographic

QuickBooks error code 80029c4a can be simply eliminated by using the following given methods below. You have to follow every solution method carefully in order to fix this error. However, if you want to be risk-free or looking for expert help then our certified team is available here to assist you in the right manner.

Method 1: Update Avast Program and Virus Definition

Update your Avast Antivirus Definition & Program Update - Screenshot
  • First of all, perform an Avast Virus definition and make all your programs updated.
update security software-screenshot

Note: If you are using another antivirus program then you need to update your antivirus first.

  • First, give a right click on your Avast icon.
  • Select the update option.
  • Click on a Program tab & then follow the prompts to upgrade your Avast program.
  • Now repeat the above steps 1-3 times & then select Engine & Virus option.

Read Also: How to Fix QuickBooks Error code 6177?

Method 2: Run the Reboot.bat file

Run Reboot.bat file - Screenshot
  • First, close your QuickBooks desktop.
  • Now open the folder in which you want to reboot.bat file.
    • Give one right-click on the icon labeled as QuickBooks Desktop.
    • Now select Properties.
    • Hit a single click on Open File Location.
  • Right-click the reboot.bat file and select Run as System Administrator.
  • Make sure that you run reboot.bat as the Windows Administrator.
  • This depends on the window folder options settings file that shows as a bat, reboot or reboot.bat
  • Don’t close the window that appeared as manually. (This will open a blank window by scrolling features). This will close when your reboot.bat utility is completed.
  • At last, restart your computer.

Method 3: Ensure the Antivirus Program has been Quarantined

  • Some antivirus programs accidentally block QuickBooks from loading essential files.
  • You need to verify your antivirus program for files that have been quarantined.
  • Simply uninstall & reinstall QuickBooks software into your system. This allows the user to open your QB software as successfully.

If you see one of the programs listed here in your quarantine, allow permission to go through your firewall.

DBManagerExe.exe FileMovementExe.exeQBDBMgrN.exe


  1. Most of these files are located in C:\Program Files\Intuit\QuickBooks (year).
  2. Files with (x86) in the location, such as C:\Program Files (x86)\Intuit\QuickBooks 20XX, are 64-bit versions.

Note: We highly recommend you consult with your IT person before making any changes to your anti-virus programs.

Also Read: Repair your QuickBooks Desktop file for Windows

Method 4: Update your QuickBooks desktop

  • First of all, the user is suggested to Re-install QuickBooks using a clean install.
clean install tool in quickbooks - screenshot
Update QuickBooks from Main Menu - Screenshot
  • Go to the File menu and click Close Company or Logoff.

(Note: If you open multiple company files in your QuickBooks at the same time, you have to follow this step for every company that is open)

  • After that tap on File & then go to Exit.
  • Ensure you are using your computer as System Administrator.
  • Also, keep in mind that there is no company open on your desktop screen.
no company open message - screenshot
  • After that, go to the Help menu option and then choose Update QuickBooks.
Go to Help and Click Update QuickBooks - Screenshot
  • Select Options.
  • Select Mark all button and then click on the Save button.
  • After that click on Update now.
  • Hit a click on the Reset Update and then select the Get Updates option.
Update QuickBooks from Main Menu - Screenshot
  • Once the update process is finished a pop-up will appear as update successful.
  • After that press the Alt + F4 keys or Esc to close the QuickBooks Desktop.
  • Now open the QuickBooks desktop, if you get the Pop-up to install the update.
  • Click on the Yes Option.
  • Once the updation is completed, you need to restart your computer.

You may also read: How to Solve QuickBooks Error 3371 Status Code 11118?

Method 5: Perform a Windows Repair on QuickBooks

  • In this process, the user is first required to close the QuickBooks desktop.
  • After that click on the Windows button, on your keyboard.
  • Followed by opening the Control Panel on your system.
  • And then hit click on Uninstall or change program.
  • Now choose QuickBooks in the list of programs.
  • The next step is to hit click on Uninstall/Change program.
Uninstall and Reinstall QuickBooks on your server computer - Screenshot
  • In the QuickBooks installation window, click Next.
  • The user is then required to opt for the Repair Radio button and then click on Next.
  • Now tap on the Repair button at the bottom.
Repair QuickBooks  Desktop - Screenshot
  • Once the repair process is completed, click on Finish.

After performing the above steps we hope your QuickBooks software now be repaired.

  • And then, Restart your computer if needed.
  • And to end the process, open QuickBooks software to ensure it opens normally.

Method 6: Running Windows System file checker

  • The very first step in this process is to click on the Start menu and then type in the command in the search box.
  • After that, the user needs to press Ctrl + Shift keys, followed by hitting Enter key.
  • Once done with that, a permission dialog box will appear, where the user will have to click on Yes.
  • The next step in the process is to enter SFC/Scannow and then hit Enter.
Running Windows file checker - Screenshot
  • The user will have to wait till the time system file checker completes the scanning process for the error code.
  • And then, when the process ends, the user needs to follow the on-screen prompts to fix the issue.

See Also: How to Fix QuickBooks Error Code H505?

Winding up!

We hope you found this article helpful. If still facing QuickBooks error 80029c4a after performing these steps then feel hassle-free to connect with our U.S Based accounting experts at our QuickBooks enterprise support. We will be pleased to help you. Feel free to get in touch with our technical support team at any time.


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