UNDER CONSTRUCTION

Adobe Air appears to be available as MSI file.
You must register with Adobe to get the download link.

Info:
http://www.adobe.com/devnet/air/articles/distributing_air_in_enterprise.html
http://www.adobe.com/de/products/air/runtime-distribution1.html

Uninstall-String (extracted for Version 14.0.0.110, but appears to be the same for all):
"%CommonProgramFiles%\Adobe AIR\Versions\1.0\Resources\Adobe AIR Updater.exe" -arp:uninstall