Copy to a text file, rename the file as anyname.mrc and load with mIRC client

–Code

on *:connect:{
  ;If you doubt someone has you in the notify list
  ;the best way to trick them until you authenticate with X (undernet) and mask your IP address
  ;is to pick a random nick, which will overwrite the last nick
  ;you had during last quit!

  if ($network == UnderNet) {
    ;Change according to the server parameters
    ;for authentication
    ;/nick rtkwt
    /nick $rand(a,z) $+ $rand(1,0) $+ $rand(a,z) $+ $rand(a,z)
    /log off
    /set %auth_username $$?=”Enter User Name” | /set %auth_password $$?=”Enter Password”
    /msg x@channels.undernet.org login %auth_username %auth_password
    /unset %auth_username | /unset %auth_password
    clear
    /log on
    ;Clear command above clears the status window, ie, from prying eyes ;)
    ;make sure status window is not logged
    ; /echo $me
    /mode $me +x
    ;To disable the automatic join, you can either delete it or comment it by using a “;” character.
  }
}