We are updating AppComposer to remove all the licensing requirements. Until then, it will be difficult to run AppComposer unless you already have a license key.
Installations come in several flavors: The "enterprise" version includes support for EJBs and Web Services. And "VM" versions include a compatible Java Virtual Machine (recommended until more testing is done with current VMs).
Windows Standard VM
Mac OSX Enterprise (zip archive)
Mac OSX Standard (stuffit archive)
Mac OSX Standard (zip archive)
Linux Standard VM