Not to be rude, but I want to explain something to you and many others real quick. I noticed online translators are not getting the 3rd person singular pronoun right, so I'll explain.
When you refer to any sort of item, object, or thing (anything that isn't a living creature, a human, a male or a female), you would call that thing "it". So, you would say "the pencil, it is yellow", and you would say "the girl, she is nice" or "the boy, he is tall".
You said:
It should be....
and it deletes the host file and if u open l2w and the patcher it closes l2w.
Also, the 3rd person singular form of any verb is that verb, with an 's' at the end. So close becomes closes, delete becomes deletes, etc.
Just remember, always use "it" unless it's a person. We don't have masculine and feminine objects in English.