Check out raw and $numerics . use google to get the numbers..
raw *:* {
if ($numeric == xxx) { echo -a $1- | haltdef }
}
xx should be replaced with the right $numeric for that event, what you looking for is extended whois informaion. The code should be in remote, ALT + R in mirc.
I guess this is what you looking for, you didnt give much information about what you wanted to do..