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?
AIR permit programmers to utilize familiar utilities such as Dreamweaver, Flash Builder, Flash Professional, or any tXt editor to build their applications and easily deliver a single application installer that works across operating systems.