Error Code:80029c4a Description:Error loading type library/DLL
When you try to open QuickBooks Desktop, you see one of the following error messages:
Solution 1: Perform a clean install of QuickBooks Desktop
Reinstall using a clean install
Update to the latest release
From the File menu, click Close Company/Logoff.
NOTE: If you open multiple company files in QuickBooks Desktop, you have to do this step for every company that are open.
Click File > Exit.
Right click the QuickBooks Desktop icon on your desktop.
Click Run as administrator.
Make sure you are in the No Company Open screen.
From Help menu, choose Update QuickBooks.
Select the Mark All button then click Save.
Click Update Now.
Click Reset Update then click the Get Updates button.
When the Update Complete message appears, close QuickBooks Desktop.
Open QuickBooks Desktop. If you get the message to install update, click Yes.
When the installation is complete, restart your computer.