Hey guys i created an object which called oIE

now i got several URL and i want to check if they exist.
4 example www.stsas.com not exist, so when i write

oIE.Nevigate (URL)
sleep 3000 <---- i give it 3 secs to try to connect
if oIE.busy then
not_found
else: found
end if
but it says 4 example that it found...
now i think it cuz it gets 404 error, now is there any way to check if the URL is "DEAD" or not?