Windows firewall is enabled and configured properly in default install. If make any changes please make sure you what you're doing, any error may result in loss of connection to your server. NEVER ever reset firewall to default setting, especially if you
have a headless device.
Avast works well with WHS. F-secure and McAfee also have WHS security solutions. MSE will not be made available for WHS.
Henk Panneman - http://www.homeserverweb.nl