I configured emacs org-mode on a Mac, working properly, having my org files
and MobileOrg file within my DropBox folder ( ~/DropBox/ ).

Now, I will like to get my emacs setup working properly on my Windows box.
I have been able to get it working in terms of reading my .emacs file and
emacs.d folder, shared through simlink config.

Everything seems to be working properly, except that when I  want to
execute org-mobile-pull or org-mobile-push on Windows, I get the following
error: "Variable `org-mobile-directory` must point to an existing directory
"

The problem seems to be that emacs isn't configured to read or point to the
org-mobile directory , per the paths set in .emacs (eg. = "~/DropBox/
...........").

I found some info on the web, which pointed to setting a parameter on
.emacs so that it identified while running on Windows, that it should look
into a directory structure.

Now, how should I accomplish this appropriately?

I found some examples of:

;;On Windows
(if (eq system-type 'windows-nt)
    (progn
       (setq default-directory "C:\Usuarios/User/")
     )
)

But it doesn't seem to be doing the job.

Thanks for any help.