From Adobe's FAQ:
Adobe AIR is a cross-operating system runtime that lets developers combine HTML, Ajax, Adobe Flash®, and Flex technologies to deploy rich Internet applications (RIAs) on the desktop. Adobe AIR allows developers to use familiar tools such as Adobe Dreamweaver® CS4, Flex® Builder™ 3, Flash CS4 Professional, or any text editor to build their applications and easily deliver a single application installer that works across operating systems.
Visit Adobe's FAQ for more info on Adobe AIR (what operating systems, languages, browser comparisons, etc). See below for a typical installation workflow (on Windows).
SpinControl:VR is built using Flash and Flex, and exported as an Adobe AIR app. Adobe AIR lets SpinControl:VR operate like any other desktop application does on your system. Cool! 
Adobe AIR is free, and you can download it here!
Installing Adobe AIR (Windows example):
1. Download Adobe AIR
2. Click 'Run'
3. Click 'Run'
4. Click 'Agree'
5. Click 'Finish'!
