hey guys On the network we run here at school we've been able to deny the kids from downloading *.exe files such as games, msn messenger (boy do they hate us for that!) but theres seemingly nothing that we can do to stop them from simply running the files as opposed to downloading them... monstrous headache, so we just deny all networks access to the internet, if they need the net, we allow access for one lesson only, even then we monitor the usage using 'Securus' .... fab piece of kit! Up until now, we havnt found a way to stop them running .exe files, we take a most defensive attitude Sorry i cant help more! jonno