More specifically, how to use ICMP Echo Request ? ICMP allows a computer with installed Windows Vista, Respond or not pingthe other computer. Windows Vista, it's blocked by default this service Firewall. For activation ICMP Echo Request without disabling firewall, you must follow a few simple steps.
1. open command prompt with privileges Administrator. (in start -> start search -> type cmd -> right-click on cmd.exe -> Run as Administrator)
2. Copy the next command line and press enter. :
enable netsh firewall set icmpsetting 8
To disable (stop responding to PING) again, instead of "enable" at the end of the command line, type "disable'
disable netsh firewall set icmpsetting 8
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