Konqueror recognizes the vCalendar format used by KOrganizer. If you use Konqueror to navigate to your calendar, it will be displayed inside Konqueror as a live object. You will be able to perform most operations with your calendar inside Konqueror; you will not need to start KOrganizer. In technical jargon, this is described as “embedding vCalendar as KPart inside Konqueror”.