This program captures and displays all socket calls of the next application that starts and makes a socket call. It will also capture and display the data that is sent and received on the application's sockets. It displays its output in a scrollable text box. This data may additionally be sent to a file as text or HTML. By default, only 32KB of data is kept in the scrollable text box. Higher data limits may be selected. Based upon each socket's first transferred message, TCP Spy will determine if the protocol being communicated over the socket is text-based, and will display the messages according to the protocol.
Tucows, Inc has graciously donated a copy of this software to the Internet Archive's Tucows Software Archive for long term preservation and access. Please check the Tucows website for all current versions of the software.