80040407 - The installation of QuickBooks appears to be incomplete.  Please re-install QuickBooks. 

According to Intuit Developer Network (IDN) Support, some errors such as this one above may only be resolved by the following procedure.

• Back up your QuickBooks data file twice; once on normal backup media and once to the hard drive of your computer in "My Documents"
• Un-install QuickBooks using Control Panel->Add/Remove Programs
• Delete the folder where QuickBooks was installed; usually C:\Program Files\Intuit\QuickBooks
• Delete the contents of the folder C:\Program Files\Common Files\Intuit
• Install QuickBooks
• Update QuickBooks with all current Maintenance Releases