TRAMP can't expand local environment variable

[Ingersoll, Nelson]

    In the Windows version of GNU Emacs (22.2.1) TRAMP cannot expand
    local environment variables.  For example, I set an environment
    value such as NODE=ingersol@thatnode.network.com.  With ANGE-FTP I
    could QED use "$NODE:work/myfile.txt" within the "Find file"
    dialogue and start the process of file retrieval and editing.  Not
    with TRAMP in the way.  With TRAMP I get "Not a Tramp file name:".

    I have to "unload" TRAMP with `tramp-unload-tramp' to get TRAMP's
    file handler out of the way and use ANGE-FTP's file handler.

    BTW - in a test version of Emacs 23 on Windows, even the
    `tramp-unload-tramp' command fails.  TRAMP has in Emacs 23
    apparently completed its consumption of ANGE-FTP and now is the
    only external file handler.

    The failure to perform at least as well as that which is replaced
    is regression.


In GNU Emacs 22.2.1 (i386-mingw-nt5.1.2600)
 of 2008-03-26 on RELEASE
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: C
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  shell-dirtrack-mode: t
  delete-selection-mode: t
  show-paren-mode: t
  pc-selection-mode: t
  encoded-kbd-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <down-mouse-1> <help-echo> <mouse-movement> 
<mouse-movement> <drag-mouse-1> <help-echo> <down-mouse-3> 
<mouse-3> <help-echo> <down-mouse-1> <mouse-movement> 
<mouse-movement> <help-echo> <mouse-movement> <mouse-movement> 
<mouse-movement> <drag-mouse-1> <help-echo> <down-mouse-3> 
<mouse-3> <help-echo> <down-mouse-1> <mouse-1> <help-echo> 
<down-mouse-1> <help-echo> <drag-mouse-1> <help-echo> 
<down-mouse-1> <help-echo> <mouse-movement> <mouse-movement> 
<drag-mouse-1> C-c <help-echo> <down-mouse-1> <mouse-1> 
<help-echo> <down-mouse-1> <mouse-1> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <menu-bar> <help-menu> <se
nd-emacs-bug-report>

Recent messages:
Loading paren...done
Loading delsel...done
Finished Windows-NT Emacs initialization
==========================================================
Finished Nelson's init.el
==========================================================
Loading c:/home/ningersoll/.session...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Loading tramp...done
Loading emacsbug...done