Personal firewall configuration for the off-site proxy

Many computers have 'personal firewall' software to help protect the system. However, if configured incorrectly, such software can block legitimate access to the Internet.

If you use the firewall built-in to Windows XP or Vista no special configuration is required. This built-in Windows Firewall is perfectly sufficient for home users. We often recommend users of other personal firewall software uninstall it and use the Windows firewall instead due to the problems third-party software can cause. However if you are unable to install your third-party firewall or wish to carry on using it you must configure it to allow access as follows: