in my .emacs file I put

******************************************
;; Directory to put various el files.
(add-to-list 'load-path "~/.emacs.d/includes")

;; Loading ascii-table
(require 'ascii-table)

;; Loading collection of generic modes
(require 'generic-x)

;; If you have own color scheme and don't like to
;; use emacs default I recommend to use
;; this package:
;; http:/www.emacswiki.org/cgi-bin/wiki.pl?ColorTheme
(add-to-list 'load-path ("~/.emacs.d/plugins/color-theme-6.6.0"))
(require 'color-theme)
(setq color-theme-is-global t)
(color-theme-initialize)
;; This is my favorite color theme.
(color-theme-deep-blue)
*******************************************

when I restart emacs I get
("C:\\Documents and Settings\\emp1\\My Documents\\emacs-22.3\\bin\\emacs.exe")
Loading encoded-kb...done
Loading cl-macs...done


An error has occurred while loading `c:/Documents and Settings/emp1/Application Data/.emacs':

Invalid function: ~/.emacs.d/plugins/color-theme-6.6.0
...

but I have a valid path to
C:\Documents and Settings\emp1\Application Data\.emacs.d\plugins\color-theme-6.6.0


Thanks