diff --git a/app/main_window.py b/app/main_window.py
index 0a47596..69f0fc9 100644
--- a/app/main_window.py
+++ b/app/main_window.py
@@ -1292,29 +1292,29 @@ class MainWindow(QMainWindow):
         exe = sys.executable if getattr(sys, 'frozen', False) else os.path.abspath("main.py")
         try:
             base = "HKCU\\Software\\Classes\\SystemFileAssociations\\.pdf\\shell"
+            sub = "HKCU\\Software\\Classes\\CopyDevImpose.sub"
             cmds = [
                 # Association PDF (Ouvrir avec)
                 f'reg add "HKCU\\Software\\Classes\\.pdf\\OpenWithProgids" /v "CopyDevImpose" /t REG_SZ /d "" /f',
                 f'reg add "HKCU\\Software\\Classes\\CopyDevImpose" /ve /d "CopyDev Imposing Tool" /f',
                 f'reg add "HKCU\\Software\\Classes\\CopyDevImpose\\shell\\open\\command" /ve /d "\\"{exe}\\" \\"%1\\"" /f',
                 f'reg add "HKCU\\Software\\Classes\\CopyDevImpose\\DefaultIcon" /ve /d "{exe},0" /f',
-                # Entrees individuelles dans le menu contextuel
-                # Ouvrir avec CopyDev
-                f'reg add "{base}\\CopyDev_Ouvrir" /ve /d "Ouvrir avec CopyDev Impose" /f',
-                f'reg add "{base}\\CopyDev_Ouvrir" /v "Icon" /t REG_SZ /d "{exe},0" /f',
-                f'reg add "{base}\\CopyDev_Ouvrir\\command" /ve /d "\\"{exe}\\" \\"%1\\"" /f',
-                # Livret A4
-                f'reg add "{base}\\CopyDev_LivretA4" /ve /d "CopyDev: Livret A4" /f',
-                f'reg add "{base}\\CopyDev_LivretA4\\command" /ve /d "\\"{exe}\\" --action booklet_a4 \\"%1\\"" /f',
-                # Livret A3
-                f'reg add "{base}\\CopyDev_LivretA3" /ve /d "CopyDev: Livret A3" /f',
-                f'reg add "{base}\\CopyDev_LivretA3\\command" /ve /d "\\"{exe}\\" --action booklet_a3 \\"%1\\"" /f',
-                # 2x2
-                f'reg add "{base}\\CopyDev_2x2" /ve /d "CopyDev: 2x2 par feuille" /f',
-                f'reg add "{base}\\CopyDev_2x2\\command" /ve /d "\\"{exe}\\" --action nup_2x2 \\"%1\\"" /f',
-                # Delivretiser
-                f'reg add "{base}\\CopyDev_Delivretiser" /ve /d "CopyDev: Delivretiser" /f',
-                f'reg add "{base}\\CopyDev_Delivretiser\\command" /ve /d "\\"{exe}\\" --action unbooklet \\"%1\\"" /f',
+                # Menu contextuel avec sous-menu via ExtendedSubCommandsKey
+                f'reg add "{base}\\CopyDevImpose" /ve /d "CopyDev Impose" /f',
+                f'reg add "{base}\\CopyDevImpose" /v "Icon" /t REG_SZ /d "{exe},0" /f',
+                f'reg add "{base}\\CopyDevImpose" /v "ExtendedSubCommandsKey" /t REG_SZ /d "CopyDevImpose.sub" /f',
+                # Sous-commandes
+                f'reg add "{sub}\\shell\\01_Ouvrir" /ve /d "Ouvrir avec CopyDev" /f',
+                f'reg add "{sub}\\shell\\01_Ouvrir" /v "Icon" /t REG_SZ /d "{exe},0" /f',
+                f'reg add "{sub}\\shell\\01_Ouvrir\\command" /ve /d "\\"{exe}\\" \\"%1\\"" /f',
+                f'reg add "{sub}\\shell\\02_LivretA4" /ve /d "Livret A4" /f',
+                f'reg add "{sub}\\shell\\02_LivretA4\\command" /ve /d "\\"{exe}\\" --action booklet_a4 \\"%1\\"" /f',
+                f'reg add "{sub}\\shell\\03_LivretA3" /ve /d "Livret A3" /f',
+                f'reg add "{sub}\\shell\\03_LivretA3\\command" /ve /d "\\"{exe}\\" --action booklet_a3 \\"%1\\"" /f',
+                f'reg add "{sub}\\shell\\04_2x2" /ve /d "2x2 par feuille" /f',
+                f'reg add "{sub}\\shell\\04_2x2\\command" /ve /d "\\"{exe}\\" --action nup_2x2 \\"%1\\"" /f',
+                f'reg add "{sub}\\shell\\05_Delivretiser" /ve /d "Delivretiser" /f',
+                f'reg add "{sub}\\shell\\05_Delivretiser\\command" /ve /d "\\"{exe}\\" --action unbooklet \\"%1\\"" /f',
             ]
             for cmd in cmds:
                 subprocess.run(cmd, shell=True, capture_output=True)
@@ -1334,6 +1334,7 @@ class MainWindow(QMainWindow):
             base = "HKCU\\Software\\Classes\\SystemFileAssociations\\.pdf\\shell"
             cmds = [
                 'reg delete "HKCU\\Software\\Classes\\CopyDevImpose" /f',
+                'reg delete "HKCU\\Software\\Classes\\CopyDevImpose.sub" /f',
                 'reg delete "HKCU\\Software\\Classes\\.pdf\\OpenWithProgids" /v "CopyDevImpose" /f',
                 f'reg delete "{base}\\CopyDevImpose" /f',
                 f'reg delete "{base}\\CopyDev_Ouvrir" /f',
diff --git a/app/updater.py b/app/updater.py
index 425aa0f..5bff866 100644
--- a/app/updater.py
+++ b/app/updater.py
@@ -14,7 +14,7 @@ REPO = "jules/copydev-imposing-tool"
 BRANCH = "master"
 
 # Version actuelle (incrementee a chaque release)
-VERSION = "3.4.3"
+VERSION = "3.5.0"
 
 
 def get_remote_version():
diff --git a/resources/icon.ico b/resources/icon.ico
new file mode 100644
index 0000000..026f37b
Binary files /dev/null and b/resources/icon.ico differ
diff --git a/version.txt b/version.txt
index 6cb9d3d..1545d96 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-3.4.3
+3.5.0