Comodo won't run for me any more so I'm back to Win firewall, which yields stealth from Gibson research (GRC) except that it answers the ICMP ping. I can't figure out how to block it. Any help appreciated! Hope that helps! - - - Kris

apparently I sussed it... Control Panel / Windows firewall / Advanced settings (on left side) / Inbound rules / New rule (on right side) : set "all programs" , protocol "ICMPv4" , ICMP settings click Customize button and choose "specific ICMP types / echo request. Choose "block". It will put it appropriately at the top of the list. GRC now shows full stealth.Hope that helps! - - - Kris

yes, this is definitely much simpler and definitely the firewall way to go (for me!) !Hope that helps! - - - Kris