Apparat
From FDT Documentation
With FDT 4.4 Beta, we've began to support Apparat. Apparat is a powerful framework to optimize ABC, SWC and SWF files. It's open source and looks to push the boundaries of ways for Flash developers to enhance their workflows and applications.
Getting Started
Before starting with Apparat, you'll need to download Apparat and Scala separately. This beta release of FDT 4.4 does not include Apparat or Scala.
Download Apparat
Visit Apparat's Download Page for the latest version of Apparat or follow this download link