Installed via Extension Manager but no activation!!

I mentioned above [ DW CS6 Windows 10 ]. We can bind to mySQL db/tables etc via old behaviors and whatever no problem. We just wanted the extension for mySQLi (or PDO mySQLi) for upgrading and future proofing my scripts.

I have also reinstalled all the WA extensions we had on this box, and again as mentioned old HTML Editor 2.2 still always asks for activation whenever an editor is first called (both install and edit via properties). "Free tools" adds WA menu options but none of the sub-menu links open anything!... unresponsive.

We don't have any problem with plugins from other suppliers, only some WA plugs.

So confidence is getting a little thin now.