Sometimes, if you try to access a messaging program from your PC it won´t let you because Windows XP blocks it, or another more powerful firewall. This is what Hopster Preview Release 20 tries to avoid. It avoids and sorts firewalls, jumping over them to directly access any instant messaging program.
It works with Messenger, Yahoo Messenger, AOL, ICQ, iMesh, Kazaa, etc and you can even access some websites with the browser that would normally be blocked.