Emacs 25 size and static linking

[Robert Thorpe]

I use Emacs 25 on MS Windows.

I've noticed that the executable for Emacs 25 is much larger than the
executable was for Emacs 24.  It's nearly 10 times larger.

I presume this is because some libraries have been statically linked
into Emacs.  I expect that means that the MS Windows user doesn't have
to install those libraries separately?

Is this correct?

If so, which libraries have been put in and which no longer need
separate installation?

BR,
Robert Thorpe