I am one of the rare ones that don't have a router and never have. I use a Westell modem that I have owned for many years and have never wanted or needed one and I still don't. I use Windows 7 Pro and EIS and I've never had any problems. I don't want to purchase a router when I don't really need it and can get by without it, so will using Windows firewall with advanced security and EAM be sufficient?