Thanks doggeral. I regreat not waiting for your posts and ‘tryed’ Kerio 4.0.7
Anyway, I went back to ZoneAlarm. No user wants a bloatware all-in-one Systemworks like application that could not update in the future. A related forum is here 
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B4349,
Throughout this discussion, several times you referred to disabling avast! and also to reinstalling Zone Alarm. One thing you didn’t mention is whether you disabled avast! before installing ZA. I’ve haunted a lot of forums reading threads about installation problems, and one piece of sage advice is given almost every time: Always disable an AV product before installing software. (This is especially true when doing soemthing “hell scary” like installing Windows updates. :o ) Reportedly, the low-level operations of an AV can interfere with some (poorly written ?) installation routines.
I don’t know whether or not you disabled avast! first (or even if it would make a difference if you hadn’t), but I thought it worth mentioning. On occasion, I’ve forgotten to disable NAV prior to an installation and suffered no consequences, but from the hundreds of threads I’ve read, apparently I was lucky. (I’ve heard it said that God looks after drunks and fools. :
)
Regards,
Hornus
Thanks Hornus, but few days ago I reinstall avast! with ZoneAlarm installed and running and everything works fine. Few days ago, I have to do the opposite: I installed ZoneAlarm with avast! running. Ok, again.
Of course, NAV is out of my considerations right now. It usually does the worst job of every antivirus applications (conflicts, poor Windows Registry handling, trash, and so on).
I have no trouble installing Windows Updates with avast! running either 
Anyway, the user always can disable the antivirus before installing software for sure 