
It is available all over the world in several languages and it is FREE. According to their website, it works well with Windows 7, Vista or XP.
#Screen readers for visually impaired software
Thunder is award-winning screenreader talking software designed for people with little or no sight.TalkButton uses high quality voices in multiple languages. It's very user-friendly, fast and responsive, quickly customized with one-click changes and shortcut keys. TalkButton also reads text from email, web browsers and programs like Pages, Preview, pdfs and Text Edit. Its unique automatic scrolling feature lets you read along easily, highlighting spoken text word-by-word, or line-by-line. Developed especially for use in Microsoft Word documents on Mac computers, TalkButton allows you to read, work and create right in Word, while you listen. TalkButton is new text-to-speech assistive technology now available for a free trial download.

They advertise that their solutions are affordable, convenient and easy-to-use.
#Screen readers for visually impaired portable
You can download it to your PC, or to portable media such as a USB stick. It is totally FREE, yet fully functional and portable.

"Peggy" is the speech recognition system that allows a totally hands free user experience. CDesk is a single program with fourteen core applications, built from the ground up to be extremely intuitive, simple to use, and easy to learn by utilizing a consistent user interface. CDesk by AdaptiveVoice is a stand-alone, all-inclusive software program designed for individuals who are blind or visually impaired.
