... Engineering Software for Accessibility 2 WinEvents used in MSAA, UIA Events use a subscription mechanism, rather than a broadcast mechanism, to obtain information. UIA Clients register for ... major (or expensive) changes should be reserved for your next revision. Go further: For more information on accessibility tools and declarations of conformance, go to http://go.microsoft.com/fwlink/?LinkId=150842. ... postal mail to Microsoft Press Attn: Engineering Software for Accessibility Editor One Microsoft Way Redmond, WA 98052-6399. Please note that Microsoft software product support is not offered...