To load Siren into a VisualWorks 7.X virtual image, follow these steps.

Start VW 7.2
   Load your favorite parcels (AT tools, DB, etc.)
   Siren requires DLLCC and the GHeeg Namespaces ComposedTextEditor
   Load Siren.pcl
   File in the MusicConstants.st file

By-hand init
   Soundfile initializeSoundFileFlags
   SirenUtility initialize (or SirenUtility initializeSirenSTP)

Load optional L&F hacks

Open list workbook
   ListWorkBook open
   Use the Page/load_all menu item to load the workbook contents
      from the BOSS file Workbook.bos

Set up a new changelist
make a snapshot...