ProtocolWatch's general idea is to sit between a
client and server, display/log the communication
done by them, and optionally change the messages
the server or the client sends to the other party.
For example, if you want to study how a Web
browser queries pages/images from a Web server,
you can use ProtocolWatch to see the protocols
used. For this you "configure" ProtocolWatch to
connect to the Web server (usually port 80), and
then using your browser you do the HTTP query
through ProtocolWatch.
