Is there an effective way, short of unplugging at the mains, of controlling the time of day that certain applications are available to certain user accounts? I'm going through what every parent with a home computer must also be experiencing - kids come home from school and promptly set up shop on MSN Messenger or Myspace for the whole evening. We have a family desktop pc (downstairs for obvious reasons) and despite my daughters' pleas for their own laptops with wireless internet connectivity, this is the only PC they're going to have access to. We're on BT Broadband Home Networking which came with some Gateway s/w from 2wire which is supposed to allow you to control each pc's access times to instant messenging or the whole internet, but this does not work properly. I would have thought there was something in Windows XP which would allow you to control each user's access by time of day to certain applications?