I made this script for my own purpose, which was to update my Host menually, since sometimes MIRC's fails.
Simply paste into remotes and it does whats needed.

It doesnt include any error checking, non mayor one atleast, so be sure to use it correctly or add error checking yourself!

on *:sockopen:getip:{
  if ($sockerr) { echo -s Could not get your external IP address. }
  else {
    sockwrite -n $sockname GET / HTTP/1.1
    sockwrite -n $sockname Host: www.whatsmyipaddress.com
    sockwrite -n $sockname User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8)
    sockwrite -n $sockname
  }
}
on *:sockread:getip: {
  if ($sockerr) { echo -s Could not get your external IP address. }
  else {
    var %r
    sockread -f %r
    if ($regex($sockname,%r,/<title>Your IP (.+)</title>/gi)) {
      set %getip.do $iif($regml(getip,2),$v1,$iif($host,$host,$me)) $gettok($regml(getip,1),3,32)
      var %x = $gettok($regml(getip,1),3,32)
      echo -s External IP updated: $iif($host,%x $+ / $+ $v1,%x)
      scon -a getip.do
      sockclose $sockname
    }
  }
}
alias -l nohtml {
  var %x, %i = $regsub($1-,/(^[^<]*>|<[^>]*>|<[^>]*$)/g,$null,%x)
  return $remove(%x,&nbsp;,$chr(9))
}
alias getip.do { .localinfo %getip.do }
alias getip { sockopen getip www.whatsmyipaddress.com 80 }
raw 001:*: .signal -n connect
on *:SIGNAL:connect: getip