Netsilon operates on project files. Project files bear the .objx extension.

At program start, a project file must be specified via a dialog box which loads recently opened projects and existing projects, or creates new projects. Cancellation of the dialog box closes the program.

A project folder contains the following sub-folder structure:
htdocs, which contains the HTML files.
trash, which contains the files deleted by Netsilon (up to 10
file copies).
generation, a working directory where Netsilon stores the
generated files.
Demonstration versions of Netsilon require a special file netsilon.key
which identifies the unique demonstration deployment site. This file is
available from support@objexion.com
upon request, indicating: