Old Version of Adobe AIR for Windows 8.1
Legacy OS support
Adobe Integrated Runtime (AIR) is a cross-platform runtime environment developed by Adobe Systems for building rich Internet applications using Adobe Flash, Adobe Flex, HTML, or Ajax, that can be deployed as a desktop application.
Updates : Adobe AIR Updates
Did You Know?
Adobe AIR for Linux Allows AIR applications to be deployed on computers and devices running the Linux operating system.