Cain's TCP/UDP Table viewer covers the same functionality offered by the Windows tool "netstat.exe".
The dialog shows all connection's parameters as protocol type, local address, port number, remote address and connection's status (TCP only). On Windows XP, the filename of the process associated to TCP and UDP ports is also displayed.
When executed, Cain binds a TCP socket on port 443 on the local machine. This is needed by the APR-HTTPS feature present in the program; Cain does not open any other local port in listening mode. For more information please refer to this page.