1)   HTTP Debugger Pro 2.8
If you need to view and analyze all of the HTTP/HTTPS traffic between a web browser or any program that uses the HTTP/HTTPS protocol and the web server, then HTTP Debugger is the program for you.

 2)   HTTP Debugger SDK 1.0
HTTP Debugger SDK allows C++, Java, .NET, Visual Basic, Borland C++ Builder, Borland Delphi and other software developers to create their own HTTP protocol viewers and analyzers.