HttpWatch can be controlled from custom written programs as well as through its user interface.You may want to do this so that you can integrate HttpWatch into automated tests and custom reporting functions.
The automation interface is based on COM allowing it to be used from almost any programming language on Windows (e.g. C#, VB.Net, Ruby, C++, etc).
The document for this programmatic interface is available in the HttpWatch Automation Reference help file that is installed with HttpWatch. You can access this help file from within HttpWatch by going to Help->Automating HttpWatch:
or directly opening the help file from the HttpWatch program group in the Start menu.