Well I am very sorry but I really can't find this line on ictcp.mrc, the omly thing I can find with !list is :
if $1- == !list && %ListFlag [ $+ [ $iNetwork ] ] != 1 {
.timer -o 1 10 unset %ListFlag [ $+ [ $iNetwork ] ]
set %ListFlag [ $+ [ $iNetwork ] ] 1