When opening QuickBooks why do I get a C=342 error?
Legacy KB ID: 1126
Question
When attempting to start Reckon Accounts, how do I resolve the following error messages:
"Unexpected Error: An error has occurred in Reckon Accounts. C=342" followed by "Reckon Accounts has encountered a problem and needs to close."
Answer
Your computer's operating system is Microsoft® Windows XP, and the Reckon Accounts shortcut or executable file (the file that is used to start an application) is set to Windows compatibility mode for Microsoft® Windows® 95, Windows® 98, or Windows® Millennium Edition (ME).
To resolve this error message:
- Right-click the Reckon Accounts program icon on your Microsoft® Windows® Desktop, and then choose Properties. (Or click the Microsoft® Windows® Start button, choose Programs, then right-click the Reckon Accounts shortcut, and then choose Properties.)

- Click the Compatibility tab.
- Clear the checkmark from the Run-in compatibility mode option.
- Click OK.

- You should now be able to run Reckon Accounts without receiving the error message.
Need more help?
Ask the Reckon Community at: https://community.reckon.com/categories/reckonaccounts
Or Log a Support Ticket: https://www.reckon.com/au/support/