When I´m tried to host a game in warcraft III, no one are enable to connect to me. I have open the ports for the game in my router, but still no one can connect. So I checked in ZoneAlarm alerts and logos/log viewer/alert type=program. When I do that I see that svchost.exe with source dns europe.battle.net is blocked. How do I unblock it?

Under program control/programs I have trusted all the options for warcraft III.

I have tried to add svcost.exe under program control/programs but it doesn´t shows up.

What should I do?