diff --git a/module2/ressources/rr_org/init.el b/module2/ressources/rr_org/init.el
index a81549de88782edcf0a757bdc4dd2f6765f1b1d3..e13dc3b05b983076e4cbf263f9edb71ef406a623 100644
--- a/module2/ressources/rr_org/init.el
+++ b/module2/ressources/rr_org/init.el
@@ -66,8 +66,9 @@
   (when (not (package-installed-p pkg))
     (package-install pkg)))
 
-(exec-path-from-shell-initialize)
-(exec-path-from-shell-copy-env "PYTHONPATH")
+(unless (memq system-type '(windows-nt ms-dos))
+  (exec-path-from-shell-initialize)
+  (exec-path-from-shell-copy-env "PYTHONPATH"))
 
 (require 'org)
 
diff --git a/module2/ressources/rr_org/init.org b/module2/ressources/rr_org/init.org
index b4b1fec88434dba22493dda35ed9c720ddeccb19..8eb28fd120d6caad7b7f9531d554ac940e4fc086 100644
--- a/module2/ressources/rr_org/init.org
+++ b/module2/ressources/rr_org/init.org
@@ -93,8 +93,9 @@ document, simply =M-x org-babel-tangle=.
 #+end_src
 * Import environment variables
 #+begin_src emacs-lisp :tangle init.el
-(exec-path-from-shell-initialize)
-(exec-path-from-shell-copy-env "PYTHONPATH")
+(unless (memq system-type '(windows-nt ms-dos))
+  (exec-path-from-shell-initialize)
+  (exec-path-from-shell-copy-env "PYTHONPATH"))
 #+end_src
 * Loading files:  
 ** Loading babel: 						     :ARNAUD:
diff --git a/module2/ressources/rr_org_archive.tgz b/module2/ressources/rr_org_archive.tgz
index 851714d4f959db0ec046747929eeb9049fa3fbff..a2160cc79a6e3825710f9ec274d45ff1d9f46caf 100644
Binary files a/module2/ressources/rr_org_archive.tgz and b/module2/ressources/rr_org_archive.tgz differ