DMXzone Extension Manager will always support third party extensions
this is George Petrov from DMXzone.com
I just want to clarify that we will always support installing third party extensions with our own DMXzone Extension Manager!
We have no intention what so ever to remove the support of third party extensions.
So just install the latest DMXozne Extension manager from http://www.dmxzone.com/go/22670/dmxzone-extension-manager-for-dreamweaver
and just drag & drop your ZXP/MXP files on it for quick install.