WebAIM: Using NVDA to Evaluate Web Accessibility
http://webaim.org/articles/nvda/

WebAIM
2009

Abstract:

This article is designed to help users who are new to NonVisual Desktop Access (NVDA) - external link learn the basic controls for testing web content, and to serve as a reference for the occasional NVDA user. NonVisual Desktop Access (NVDA) is a free and open source screen reader for the Microsoft Windows operating system. It supports over 20 languages and can run on any computer entirely from a USB drive with no installation.