code:

C:\>netstat -ano

Displays protocol statistics and current TCP/IP network connections.

NETSTAT [-a] [-e] [-n] [-s] [-p proto] [-r] [interval]

  -a            Displays all connections and listening ports.
  -e            Displays Ethernet statistics. This may be combined with the -s
                option.
  -n            Displays addresses and port numbers in numerical form.
  -p proto      Shows connections for the protocol specified by proto; proto
                may be TCP or UDP.  If used with the -s option to display
                per-protocol statistics, proto may be TCP, UDP, or IP.
  -r            Displays the routing table.
  -s            Displays per-protocol statistics.  By default, statistics are
                shown for TCP, UDP and IP; the -p option may be used to specify
                a subset of the default.
  interval      Redisplays selected statistics, pausing interval seconds
                between each display.  Press CTRL+C to stop redisplaying
                statistics.  If omitted, netstat will print the current
                configuration information once.

C:\>ver

Microsoft Windows 2000 [Version 5.00.2195]