Assembly: Microsoft.Office.Interop.Outlook (in Microsoft.Office.Interop.Outlook.dll)
This property corresponds to the MAPI property PidTagRecipientFlags. It returns True if PidTagRecipientFlags is equal to 0x00000001. Setting the property changes PidTagRecipientFlags accordingly.
This property applies only to a recipient of a meeting request. If the recipient is not on a meeting request, getting and setting this property does not do anything.