Damaged MsXML Services (.dll) file- Programs or Web browser extensions require DLL files as these files contain program code, data, & resources. Not using the latest release of QuickBooks- You need to verify the latest version and the release by clicking on option F2 to get the Product Information Window. Unregistered Files- You need to re-register files when QuickBooks is not functioning and then you can re-start QuickBooks to see if the problem is fixed. In case the problem has not been corrected, then you can download & re-install Microsoft’s Core XML services.
if you are not able to solve the error by any of the solutions above, then it can be that you are performing some wrong step. It is advisable in that scenario to seek technical assistance at QuickBooks Phone Number +1-855-738-7873.