I assume you mean that they are getting to websites they are not supposed to by turning off the proxy settings in their browsers? If that is the case then you should block port 80 traffic outbound (only allowing your proxy server out) on your external router so that users can't get to the internet unless it is through your web proxy. That or run a transparent proxy service. If I am incorrect, please explain in more detail. //signed// Jamie R Nelson Systems Engineer Ingenium Corporation From: Christine Whitewood Sent: Thu 6/7/2007 5:37 PM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] vb scripts running from USB keys Can anyone tell me how to stop this happening? Our students are running scripts that get them round our proxy. Regards Chris Whitewood Network Administrator St Francis Xavier College Beaconsfield/Berwick