1. Download SAPI 5.1 from the Microsoft website. 2. Once you have the SAPI 5.1 installed, install SpeechFirst.   Tandem   SpeechFirst   Accessibility and Compliance Services         E-mail this Link Speech Desk Inc. 2001 - 2004 Weymouth Street, Dix Hills, New York 117 46, USA. Telephone Number : 631-243-3410 Call Toll Free Number 1- 800- 299- 4921 or contact sales@speechdesk.com . Privacy Policy | Legal Notice | Check Mail