Since recent updates sometime in the past few months, DWuse Maximenu no longer works.

If you are willing to try Bootstrap 5, this is a great solution costing $5:

https://bootstrap-menu.com/

You probably mean this one:

https://www.dwuser.com/products-extensions/

Although I never used their products,  I think they stopped developing extensions for Dreamweaver in 2018. 

Project Seven's extensions & support are far superior.  And they cost more, too.

I have just tqken on fome major projects that I will be publishing with Dreamweaver.  I have been using DWUser MaxiMenu for severl years with Dreqmweaver.  One project was a modification to an old site.  MaxiMenu would let me go in and make changes but would not save them.  So I started one of the new sites, and the menu will set up OK, but when you save it cannot find any pages to save it to.  Not sure if it is the result of more recent Dreamweaver upgrades or a flawe MM.  It appears that  DW user may be out of business .  I have sent may support requests on their menu an no response.  I ealmailed their support manytimes and no response.  As final resort I mailed their sale department and no responss.Doesn't seem to be any other providers of Menus for Dreamweaver and I am too old to try to learn another  web development program.  Any ideas?

Pat

By @Garth Barfarckle

Look up 'project VII' I think they are still going. They produce some menu extentions for Dreamweaver:

https://www.projectseven.com/ 

Edited:

Hummmmm are you already talking about Maxi Menu from PVII for Dreamweaver.....they produce a menu with that name? Have you asked in the forum if that is the case?