With the Outlook (Classic) set in the Send Forms Preferences it gives "This action cannot be completed because the other program is busy" Options to Switch To or Retry. Does work when you allow access but for a run of Invoices it asks on every one. Using a Preference of Outlook (Classic) v2 however gives "Unable to cast COM object of type 'Microsoft.Office.Interop.Outlook._Application'. This operation failed because the Queryinterface call on the COM component for the interface with ID '{various numbers & letters}' failed due to the following error: Element not found.Exception from HRESULT:0x8002802B (TYPE_E_ELEMENTNOTFOUND)