We're looking to roll out the Windows Firewall on our clients. I cannot imagine that squid is relevant to this equation as all communication is done by the client and initiated by the client and done via a browser, but are there any potential "gotchas!" here? Are we more likely to see timeouts for slow response web servers for example? I feel silly for asking, but better safe than sorry I guess. Paul Cocker TNT Post is the trading name for TNT Post UK Ltd (company number: 04417047), TNT Post (Doordrop Media) Ltd (00613278), TNT Post Scotland Ltd (05695897), TNT Post North Ltd (05701709), TNT Post South West Ltd (05983401), TNT Post Midlands Limited (6458167)and TNT Post London Limited (6493826). Emma's Diary and Lifecycle are trading names for Lifecycle Marketing (Mother and Baby) Ltd (02556692). All companies are registered in England and Wales; registered address: 1 Globeside Business Park, Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1HY.