Virtual Hypnotist is a free, open source, interactive hypnosis program.

It includes features such as voice recognition, speech synthesis, subliminal messages, completely customizable scripts (featuring a unique scripting language), videos, audio, and lots more. Its purpose is to simulate a real hypnosis session as much as possible.

Features

-Script maker, for easily editing scripts
-Binaural brainwave synchronizer
-Lots of pre-made scripts, from inductions, deepeners, suggestions, etc.
-Two subliminal message systems
-Hypnotic visual maker, for designing your own hypnotic effects
-Cool presets that get you started instantly
-Fully customizable hypnosis sessions
-Complete speech synthesis
-Speech recognition that lets you verbally respond to questions and prompts while under hypnosis
-Easy and powerful scripting language called ISL used for creating and processing scripts
-Animated characters
-Support for video files and flash animations, and even lots of videos/animations included
-HypnoChat and Remote Controller, an AIM-compatible instant messaging system that allows one user of Virtual Hypnotist control another user's program over the Internet, with the subject's consent.
-Text-only sessions that display text on the screen instead of using the speech system.
-Background and Subliminal modes
-Support for playing hypnosis audio files, while using Virtual Hypnotist for graphics
-3D graphics support
-Session previewing support
-WAV file output support (SAPI5 only)
-Script Processor Console which allows a user to operate the script system in an interactive manner
-Script Converter for converting standard text scripts to the ISL script format
-Personalized information for use in sessions (name, gender, and preferred trigger)
-Comes with the Virtual Hypnotist User's Guide
-All source code is included (written in Visual Basic 6)
-And more :)