Error -2146777998 When Trying To Call an Excel Application

Updated Aug 24, 2023

Reported In


  • LabVIEW 2016 Full

Issue Details

I am trying to call a Microsoft Excel application using the application control function node or using the Active X controls, but I am getting an unspecified fault with error code -2146777998.


  • Verify that the version of Excel is registered and activated with Microsoft
  • Close all open Excel instances
  • Restart the computer if Excel has been updated recently