The software is called Natural Reader.
Its free edition is limited with features but it is also good to have.
- It is a text to speech converter software
- It comes with a floating bar, which helps reading texts from MS Word, PDF Files, Web Pages etc.
- You can change reading voice and reading speeds also.
- It supports hot key, means just select the text and press the hotkey. Software will read the selected text for you.
- It comes in different versions. Free, Personal, Professional, Silver, Gold and Ultimate versions. You can purchase and download the free version of the software from the official site : http://www.naturalreaders.com/index.php