In th merged installer MiKTeX is directly included. So even if you
don't
have Internet access, you can install LyX and it will work with its
basic
features. There were some reasonable user requests in the past to
include
MiKTeX directly and the MiKTeX maintainer kindly built in some
features for
us in his basic installer.
I would prefer not to include MikTeX in the installer. Most people that
download LyX already have MikTeX installed, so why would you bother them
with a huge download.
For these people we have the standard installer. The bundle installer
is especially designed for new installations and therefore includes
MiKTeX and JabRef (is optional). So the standard installer will not
bother the user and is as small as possible to update existing LyX
installations. This variant therefore expects an installed MiKTeX. If
no MiKTeX or TeXLive is found, it will throw a warning that the bundle
installer should be used.
Why don't we download it anymore then ? We did this as long as I
remember having Windows installers.
Vincent