February 12th, 2007
Microsoft Anna is the new SAPI voice included with Windows Vista.
Anna replaces the robotic Microsoft Sam with a smoother, more realistic voice. She is included free with Windows Vista and should work in any program that uses the SAPI speech including Clicker 4 or 5, Writing With Symbols and the free text-to-speech programs such as Narrator, ReadPlease and Free NaturalReader.
Unfortunately Microsoft has no plans to make Anna available to users of Windows XP or any operating system other than vista.