Creative Suite Extension Builder provides tools for developing, debugging and deploying extensions that can use Flex and Adobe AIR to extend the functionality of most Creative Suite 5 (and later) products.
A working knowledge of Flex and ActionScript is recommended to use Extension Builder. Extension Builder is available to Technology Partners and Enterprise partners as part of the software benefits. It is also available as a separate purchase for non-partners. Please read the Extension Builder product page for more information on how to use and how to obtain Extension Builder.