“You are not allowed to edit this selection because it is protected.” but only since Office 2013?

Question

We\'ve had these few lines of code running happily in our applications for several years (and in several versions of Office, 2003, 2007, 2010 etc). Purpose is to perform a kind

Answer 1

In desperation, trawling for answers even in blog posts and discussions far removed from this particular error it seems there's been a change in Office 2013 to the default treatment of the ReadingLayout.

Introducing the line w.ActiveWindow.View.ReadingLayout = False seems to have solved our problem.