NonVisual Desktop Access (NVDA) is a free and open source screen reader for the Microsoft Windows operating environment.
Thunder is an award-winning free screenreader talking software that works with Windows 7, Vista and XP and is available in several different languages.
Braille Translation Software
Libbraille is a free online translator from unicode text to braille. It is possible to select the braille alphabet for many languages.
ODT2 Braille is a braille extension to Open Office that enables authors to print document to a braille embosser and to export documents as a braille file.