.YBK File Extension

Electronic book that can be read on a desktop computer using YanCEyDesktop; can also be read on a Pocket PC PDA using YanCEyWare Reader; supports text, graphics, highlighting, links across e-books, and page viewing history; common format used for storing The Church of Latter-day Saints literature and other religious texts, though it can be used for other nonfiction and fictional texts as well.

YBK files must be stored in the \​Library\​ directory of the SD card used by the PDA in order to work correctly.

YanCEyWare Reader for Pocket PC and Windows Mobile were distributed as donation-ware from the YanCEyWare website. However, the software is no longer available or maintained.

Contains updates to articles and other content in the Encarta encyclopedia; helps keep Encarta information up-to-date without upgrading the entire program; located in the "\Program Files\Microsoft Reference\Encarta Encyclopedia\UpdateXX\" directory.