有高手说：对于采用Windows 2000或者Windows XP的用户来说，不需要安装任何其他软件，只利用“TCP/IP筛选”功能就能关闭、限制本机端口。可小弟按此方法把“TCP/IP筛选”对话框左边“TCP端口”上的“只允许”加入“80”端口并选上后，好象却没有起任何作用。
F:\>netstat -an -p tcp
Active Connections
Proto Local Address Foreign Address State
TCP 0.0.0.0:7 0.0.0.0:0 LISTENING
TCP 0.0.0.0:9 0.0.0.0:0 LISTENING
TCP 0.0.0.0:13 0.0.0.0:0 LISTENING
TCP 0.0.0.0:17 0.0.0.0:0 LISTENING
TCP 0.0.0.0:19 0.0.0.0:0 LISTENING
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING
TCP 0.0.0.0:135 0.0.0.0:0 LISTENING
TCP 0.0.0.0:443 0.0.0.0:0 LISTENING
TCP 0.0.0.0:445 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1025 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1026 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1027 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1030 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1137 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1199 0.0.0.0:0 LISTENING
TCP 0.0.0.0:1266 0.0.0.0:0 LISTENING
TCP 0.0.0.0:3372 0.0.0.0:0 LISTENING
TCP 0.0.0.0:6165 0.0.0.0:0 LISTENING
TCP 122.208.99.173:135 122.208.143.197:1660 ESTABLISHED
TCP 122.208.99.173:135 122.208.151.50:2168 ESTABLISHED
TCP 122.208.99.173:1137 218.89.137.136:80 ESTABLISHED
TCP 122.208.99.173:1199 218.89.137.136:80 CLOSE_WAIT
TCP 122.208.99.173:1266 219.238.233.252:80 ESTABLISHED
如上：Local Address和Foreign Address仍然有许多端口处于打开状态（原本想只打开80端口），WHY？？？
究竟怎样关闭、限制端口？？————请各位高手相助，先谢谢喽！！
