Username or EmailPassword
not really, a lot of isp's block those ports, and netbios ports etc.
Then his claim about running without firewall is not true.
Now I'm running linux at home and every day I see in a firewall log thousands of connection attempts to ports used for windows networking from all over the internet. I guess these come from machines infected by blaster, sassler etc..
On the other hand, I also ran windows machines without active antivirus for several years and never got a virus.