According to Intuit, QuickBooks may report “Error: An unrecoverable error has occurred. Exception msxml could not cocreate instance” when opening QuickBooks.
This error may be caused by a damaged or unregistered Microsoft XML Parser (MSXML).
To resolve this error, try these troubleshooting steps:
- Re-register the Microsoft XML Parser
- Download and re-install MSXML3.dll, which is the file for Microsoft’s XML Parser 3.0
- Perform a clean install of QuickBooks
See our related article on a similar error when opening QuickBooks, Error: C=343.
For more information on this error and details on these troubleshooting steps, see this Intuit knowledge base article.