UltraVNC

because my lan is wide open on the comodo firewall.

thanks, the problem was from comodo firewall pro 3.0 . when you close it it continue to be active . Seem not possible to desactivate it. so now that he is configured all is ok.

So sc will work if me and the person is behind a nat? the other person doesn't need to route the port on his router?

this ...

Thanks the problem seem to be from my side. it's always say stealth.

Will try to figure out.

I want to use SC to be able to help other setup a software on their computer.
It work well inside my lan, but doesn't work when someone from the internet (behind a NAT) want to comunicated with me (behind a NAT).

Doesn't really found how to setup for a NAT to NAT connection. I don't want the person ...