In today's rapidly changing technological world, it is increasingly important that web and desktop applications be accessible to everyone, including those of us with special needs. However, the legal requirements for accessibility are often convoluted and diffucult to understand, making it impossible for most developers to comply with the laws. In the first book on the market to address the topic, Author John Paul Mueller leads you through the maze of Section 508 - the congressional law ensuring that all Americans have access to information technology - and offers comprehensive guidance on how to quickly and easily update your applications to conform to Section 508 requirements. To begin, Mueller outlines the Section 508 requirements that are relevant to web and desktop application developers, and explains the laws in language you can understand. Using extensive and varied program examples, Mueller continues on to teach you to write web and desktop applications that not only conform to Section 508 standards, but look forward to ensure long-term universal accessibility for all types of computer users. Specific topics include writing accessible web applications and desktop applications using Visual Basic .NET and Visual C# .NET, developing special application capabilities, using Microsoft and other third-party tools to develop accessible features, developing accessible scripting solutions, and more. The book even includes a directory of helpful organizations, agencies, and resources to help you with any further accessibility concerns you may have.