Why I can't use EasyPG under Windows XP?

[Water Lin]

I am using Windows XP and using Emacs 23. I want to use EasyPG to
encrypt my files to keep secret. I use GnuPG as default engine.

My EasyPG setting is working under Linux but after I check out my config
file to Windows XP, I get following message while I open a gpg file:
------------------
File exists, but cannot be read
------------------

here is my setting in .emacs:
-----------------------------
(custom-set-variables
 '(epa-file-name-regexp "\\.gpg\\(~\\|\\.~[0-9]+~\\)?\\'")
 '(epg-gpg-program "c:/Program Files/GNU/GnuPG/pub/gpg.exe"))
(require 'epa-file)
(epa-file-enable)
;; Using symmetric encryption always
(setq epa-file-encrypt-to nil)
;; save the password
(setq epa-file-cache-passphrase-for-symmetric-encryption t)
;; auto-save
(setq epa-file-inhibit-auto-save nil)
-----------------------------

Why?

Thanks

Water Lin

-- 
Water Lin's notes and pencils: http://en.waterlin.org
Email: WaterLin@ymail.com