playBunny: Yes playBunny I agree with you in this point. There was no intention to command people to use that or this. Just my suggestion.
Everyone can make their own decission how will secure their operating system by whatever they want(advice from friend who´s keen on this comp´security things,security webs,company focusing on this matter and so on). The basic thing for me is not to log in with admin rights, not to browse on "suspicious" web pages, not to open e-mail from "unknown" sent and its enclosure, use spam filter, install microsoft updates....and so on.

there are a lot of possibilities to search on web and find out what keeps you (relatively) safe or not. Of course, there is never no 100 % safety. I know that.

I would be glad to hear from playBunny and bitwisexor how they imagine safe system on Windows (XP or others) not Unix systems, so what application to use to protect agains worms, hacking attacts, viruses and other network threats.

Bitwisexor, I know why is firewall using for -to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both.
It basicily incluedes packet filter, application gateway, circuit-level gateway, proxies....

Ok guys....witing for your responds. :)
I´m curious