I have want to play with a friend worms world party using hamachi. But the only thing we can do is chat and when one of us host the other does't see the host. And both our firewalls, anit-virus are of. What is the problem or what does block us from seeing the host. Thanks in advance.

why exactly are you using hamachi?
the online works far better

and hamachi can have alot of errors when running games, its not the best idea
oh, and check your pms

if you have a router you gotta port forward unless you use hamachi ;) (just pointing out why some use it)