UsableNet – Website Testing Systems. UsableNet offers free Dreamweaver technology to enhance the product’s accessibility support. UsableNet also sells some software for developing accessible Web sites.
Dreamweaver stores the site definitions for Mac users in the Preferences. If you need to reinstall DW or perform other actions that might cause your site definitions to be lost, simply create a backup copy of the Dreamweaver Preferences first using a different name. Then when you are finished, you can rename the backup file and replace the Preferences with the file containing your site definitions.
Making the head editable in a Dreamweaver template