You would have to capture packets if it contains the stuff you are looking for, you could use Win32::OLE to manipulate the browser ... it might be easier to just build something to monitor the browsers history file and log it... or pop up a message box with something neat on it like "Perl knows what you did last summer..." If you can afford the PiX, that would do it, and some Switches and Routers have some limited capabilities... I think there are some personal firewalls that do what you want too, but I don't know that they would do exactly what you want. You can google for "personal firewalls"

JamesNC