Error: "QuickBooks has a problem in reading this registration file: qbregistration.dat" after installing an update to Symantec Norton 360

What is happening

When starting QuickBooks, the "Loading QuickBooks..." screen appears temporarily, and then the following error message appears:

QuickBooks has a problem in reading this registration file. You need to ask your system administrator to REMOVE this file and re-install QuickBooks

C:\Documents and Settings\All Users\Application Data\Common Files\Intuit\QuickBooks\QBRegistration.dat

Why is this happening

This error usually occurs if there has been damage to the MSXML component of Windows.

Note: This has been known to occur after installing an update to Symantec's Norton 360 security software suite.
This error may also occur even if Norton 360 is not installed on the computer.

https://support.quickbooks.intuit.com/support/Pages/KnowledgeBaseArticle/1009799

In the Open field, type msiexec.exe /fvaum D:\Qbooks\msxml.msi (replace D with the letter assigned to your CD drive) and click OK