This is a bit odd to ask in a web development forum, but I have a client who wants to disable browsing in their offices, and I suspect newgroups, too. They want to allows employees to get email from their website, and have no access to browse.
The first option I came up with was to uninstall all browsers from their machines - but its to easy to install a new one.
My next thought would be to use a router with a built-in firewall to close all non-email ports (like those used for browsers & newsgroups). Can this be done?
Or, is there a simpler way to disable browsing & newsgroup ports without a firewall/router?
Last item is to assume a Windows PC, 98 thorugh XP Home, no XP Pro, No NT machines (which I can't work with well anyway).