Port Scanner

  Superscan.zip  size: 239 kb It is one of the fastest and flexible TCP port scanner that comes at a much better price---Free.
  Ipscaner.zip  size: 96.5 kb  
  Tcpviewer.zip  size: 496  kb TCP Viewer captures and displays all data that is transferred between client processes and a server process communicating through TCP/IP. The processes can be running on the same machine or different machines located anywhere on a network or the Internet.