Hi Rich,
Did you try installing the extensions from the below locations:-
Vista/Windows 7: C:/Program Files (x86)/Adobe/Adobe Dreamweaver CC/Configuration/DisabledFeatures
Mac OS X: /Applications/Adobe Dreamweaver CC/Configuration/DisabledFeatures
In Dreamweaver CC, server behaviors are available as an extension, Deprecated_ServerBehaviorsPanel_Support.zxp. After you install the extension, the server behaviors feature is enabled and extensions dependent on it work as they did previously.
Regards,
Anit Kumar