This area in Windows XP mainly includes of icons that will symbolize the programs with start up mechanically when the computer is turned on as well as the other relevant information. In this case the automatic updates and the antivirus program are also shown in windows Xp. If there is a round button appears, this will grant you to increase or decrease the area which contains the icons of these programs. The time will also appear here. If you desire to open them just double-click on the icon itself.