Little annoying browser windows, search bars in internet explorer, Casino games crap, adult diallers, favourites in IE, key loggers etc. I have hardened the firewall, but the users all use MSN Instant Messenger and so those ports are open. Messenger Plus seems to add to the mayhem. Should I shut off IM ports completely and will that stop the little *******s from messing with my users? I have installed Ad-Aware 6 on one or two desktops and it finds >100 objects. I delete the ones I don't know about and the odd Hotbar, but things come back very quickly! It only seems to be on this one particular site, have I left something wide open for more malicious attacks?