Using NetMeeting, you can participate in virtual meetings, work in shared applications, and share data over the Internet or your company intranet. NetMeeting is actually already installed after you perform a full install of Windows XP, but it won't appear on the Start menu until it's activated. To activate NetMeeting:
Step 1: Click Start, then Run, and enter Conf
Step 2: Click OK
Step 3: In the NetMeeting Wizard, supply the necessary information.
NetMeeting should start and is now listed in the most frequently used programs list on the Start menu. Enjoy!