I've managed, finally, to get the extensions installed but they just aren't working.
The MySQLi Query Builder, for example, is just returning all records no matter what your search criteria. I'll submit that problem into the MySQLi forum for direct help with it.
The point I was making however is that what you offer doesn't actually work as a standalone product. You have to install a third-party extension manager and then use deprecated panels in Dreamweaver in the hope that you won't run into problems. David Powers has described use of those panels as "at your own risk" which is a clear indication that problems are likely to occur.
So when problems do occur, such as the MySQLi extension not working correctly, we're left not knowing if it's the extension itself, the installation via DMX Zone Extension Manager or the deprecated panels in Dreamweaver. It's messy, wouldn't you agree?
Hoping you can help me with the MySQLi problem.