In order to enable software for all audiences and abilities, Microsoft has released a new Visual Studio extension that leverages Tenon’s HTML accessibility checker service. With this new extension, developers can detect and resolve common HTML-based user interface accessibility issues. Try it out by installing the extension Tenon HTML Accessibility Checker from the Visual Studio Gallery or from within Visual Studio.
To get started, open a supported version of Visual Studio such as VS 2013, 2015 Preview or the free Visual Studio Community. Select the Tools menu, and then the Extensions and Updates option. Search for “accessibility” and select Install the Tenon HTML Accessibility Checker. Restart Visual Studio when prompted.
Read more about it here.