How can I close unused ports in Windows XP Pro?

[Teo]

Hi,

I'm a little concerned, after running netstat -a in my
home computer I can see several connections to a server I
really don't know, I have been searching this server and
what I can see is that this server is a hacker site, the
port usually used is 1027. I want to know how can I close
unused ports in my computer, is there a way to do it
through DOS or any WinXP application?

Please provide help.

Thanks in advance.

Regards,

Teo