JustVoice Legacy was a command and control voice recognition software created by Dmitry Vostokov between 1992 and 1999 that allowed users to control Windows applications using voice commands. It had a modular architecture that supported replaceable recognition engines and user interfaces. It was initially created in C but later ported to C++ and only used the Windows API. Key features included automatic program tracking, a command editor for creating new voice commands, training a user's voice, and recognition tuning.

1. JustVoice Legacy
Command and Control Voice Recognition
Dmitry Vostokov

2. Chronology
 1992 – 1993 Covox VoiceBlaster
 1993 – 1994 IPI VoiceMouse (Japan market)
 1994 – 1999 IPI JustVoice, VoiceCAD
 1995 – 1996 32-bit port (The first 32-bit
speech recognition) for Windows 95 / NT
 1998 – 1999 Added noise filtering

3. Resources
 Less than 10% (i386 33MHz)
 User transparency
 Command recognition for any
Windows application including MS-
DOS windows

4. Architecture
 Modularity (DLLs)
 Replaceable and extendable UI
 Replaceable recognition engine
 Windows hooking
 DOS Windows - VxD driver for
keyboard commands(Windows 3.x,
Windows 95/98/Me)

5. Implementation
 1992 – С language
 1996 – ported to С++
 Only Windows API

7. Main Window

8. Automatic Program Tracking

9. Command Editor

10. Creating New Commands

11. Multimedia Commands

12. Training Voice Command

13. Recognition Tuning

14. Just-In-Time Macro Commands