Don't a few important applications rely on a working ping.exe? I don't think the smartest idea is to make a dummy ping.

Don't you have a router or firewall where you can block future pings if the pings are, lets say more than 8 packets sent in a row? (I think Windows ping defaults to four packets sent, this allows people who actually don't mess around with ping be able to use it).

[P.S. - Why is this in the General Technology Forums / Operating Systems?]