Face differences between emacs-nox & windows-nt

[Gary <help-gnu-emacs@garydjones.name>]

Is there any reason for these differences for the "Basic default face"?

emacs-nox:
        Family: default
       Foundry: default
         Width: normal
        Height: 1
        Weight: normal
         Slant: normal
    Foreground: unspecified-fg
    Background: unspecified-bg
     Underline: nil
      Overline: nil
Strike-through: nil
           Box: nil
       Inverse: nil
       Stipple: nil
          Font: unspecified
       Fontset: nil
       Inherit: nil

windows-nt
        Family: Courier New
       Foundry: outline
         Width: normal
        Height: 98
        Weight: normal
         Slant: normal
    Foreground: SystemWindowText
    Background: SystemWindow
     Underline: nil
      Overline: nil
Strike-through: nil
           Box: nil
       Inverse: nil
       Stipple: nil
          Font: #<font-object -outline-Courier
        New-normal-normal-normal-mono-13-*-*-*-c-*-iso8859-1>
       Fontset: -outline-Courier
        New-normal-normal-normal-mono-13-*-*-*-c-*-fontset-startup
       Inherit: nil

AFAIK I've never customised or otherwise changed the face in either. The
difference in colours is quite a pain when trying to use a joint
configuration :(

-- 
Gary        Please do NOT send me 'courtesy' replies off-list.
GNU Emacs 23.2.1
emacsclient 23.2