diff --git a/COURS01/FAccueil.cs b/COURS01/FAccueil.cs
index eee1bd4..52b77d5 100644
--- a/COURS01/FAccueil.cs
+++ b/COURS01/FAccueil.cs
@@ -49,10 +49,9 @@ namespace COURS01
 
         private void btnEntrez_Click(object sender, EventArgs e)
         {
-            EcranPrincipal f = new EcranPrincipal();
+            EcranPrincipal f = new EcranPrincipal(this);
             this.Hide();
             f.ShowDialog();//Bloque la fenetre parrent alors que show ne bloque pas le parent
-            this.Show();
         }
     }
 }
diff --git a/COURS01/FPrincipal.Designer.cs b/COURS01/FPrincipal.Designer.cs
index a740743..312695e 100644
--- a/COURS01/FPrincipal.Designer.cs
+++ b/COURS01/FPrincipal.Designer.cs
@@ -30,11 +30,11 @@
         {
             this.menuStrip1 = new System.Windows.Forms.MenuStrip();
             this.mFenetre = new System.Windows.Forms.ToolStripMenuItem();
-            this.mAide = new System.Windows.Forms.ToolStripMenuItem();
-            this.mQuitter = new System.Windows.Forms.ToolStripMenuItem();
             this.mfProgression = new System.Windows.Forms.ToolStripMenuItem();
             this.mfListe = new System.Windows.Forms.ToolStripMenuItem();
             this.mfEditeur = new System.Windows.Forms.ToolStripMenuItem();
+            this.mAide = new System.Windows.Forms.ToolStripMenuItem();
+            this.mQuitter = new System.Windows.Forms.ToolStripMenuItem();
             this.menuStrip1.SuspendLayout();
             this.SuspendLayout();
             // 
@@ -60,22 +60,6 @@
             this.mFenetre.Size = new System.Drawing.Size(58, 20);
             this.mFenetre.Text = "Fenêtre";
             // 
-            // mAide
-            // 
-            this.mAide.Name = "mAide";
-            this.mAide.ShortcutKeys = System.Windows.Forms.Keys.F1;
-            this.mAide.Size = new System.Drawing.Size(43, 20);
-            this.mAide.Text = "Aide";
-            this.mAide.Click += new System.EventHandler(this.mNDef_Click);
-            // 
-            // mQuitter
-            // 
-            this.mQuitter.Name = "mQuitter";
-            this.mQuitter.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F4)));
-            this.mQuitter.Size = new System.Drawing.Size(56, 20);
-            this.mQuitter.Text = "Quitter";
-            this.mQuitter.Click += new System.EventHandler(this.mQuitter_Click);
-            // 
             // mfProgression
             // 
             this.mfProgression.Name = "mfProgression";
@@ -97,6 +81,22 @@
             this.mfEditeur.Text = "Editeur";
             this.mfEditeur.Click += new System.EventHandler(this.mNDef_Click);
             // 
+            // mAide
+            // 
+            this.mAide.Name = "mAide";
+            this.mAide.ShortcutKeys = System.Windows.Forms.Keys.F1;
+            this.mAide.Size = new System.Drawing.Size(43, 20);
+            this.mAide.Text = "Aide";
+            this.mAide.Click += new System.EventHandler(this.mNDef_Click);
+            // 
+            // mQuitter
+            // 
+            this.mQuitter.Name = "mQuitter";
+            this.mQuitter.ShortcutKeys = ((System.Windows.Forms.Keys)((System.Windows.Forms.Keys.Alt | System.Windows.Forms.Keys.F4)));
+            this.mQuitter.Size = new System.Drawing.Size(56, 20);
+            this.mQuitter.Text = "Quitter";
+            this.mQuitter.Click += new System.EventHandler(this.mQuitter_Click);
+            // 
             // EcranPrincipal
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -109,6 +109,7 @@
             this.MinimizeBox = false;
             this.Name = "EcranPrincipal";
             this.Text = "Ecran Principal";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.mQuitter_Click);
             this.menuStrip1.ResumeLayout(false);
             this.menuStrip1.PerformLayout();
             this.ResumeLayout(false);
diff --git a/COURS01/FPrincipal.cs b/COURS01/FPrincipal.cs
index b28c782..c956692 100644
--- a/COURS01/FPrincipal.cs
+++ b/COURS01/FPrincipal.cs
@@ -12,15 +12,47 @@ namespace COURS01
 {
     public partial class EcranPrincipal : Form
     {
+        Form parentToClose;
+        bool parentToCloseF;
         public EcranPrincipal()
         {
+            parentToCloseF = false;
             InitializeComponent();
         }
-
+        public EcranPrincipal(Form parentToClose)
+        {
+            parentToCloseF = true;
+            InitializeComponent();
+            this.parentToClose = parentToClose;
+        }
         private void mQuitter_Click(object sender, EventArgs e)
         {
-            Close();
+            if(parentToCloseF)
+            {
+                parentToClose.Close();
+                if (parentToClose.IsDisposed)
+                    Close();
+            }
+            else
+                Close();
         }
+
+        private void mQuitter_Click(object sender, FormClosingEventArgs e)
+        {
+            if (parentToCloseF)
+            {
+                parentToClose.Close();
+                if (parentToClose.IsDisposed)
+                {
+                    e.Cancel = false;
+                }
+                else
+                    e.Cancel = true;
+            }
+            else
+                e.Cancel = false;
+        }
+
         private void mNDef_Click(object sender, EventArgs e)
         {
             MessageBox.Show("Fonctionnalité non implémentée");
diff --git a/COURS01/bin/Debug/COURS01.exe b/COURS01/bin/Debug/COURS01.exe
index 40df7a9..4b3dc29 100644
Binary files a/COURS01/bin/Debug/COURS01.exe and b/COURS01/bin/Debug/COURS01.exe differ
diff --git a/COURS01/bin/Debug/COURS01.pdb b/COURS01/bin/Debug/COURS01.pdb
index c60cf80..134d772 100644
Binary files a/COURS01/bin/Debug/COURS01.pdb and b/COURS01/bin/Debug/COURS01.pdb differ
diff --git a/COURS01/obj/Debug/COURS01.csproj.GenerateResource.Cache b/COURS01/obj/Debug/COURS01.csproj.GenerateResource.Cache
index f4e95b8..761827a 100644
Binary files a/COURS01/obj/Debug/COURS01.csproj.GenerateResource.Cache and b/COURS01/obj/Debug/COURS01.csproj.GenerateResource.Cache differ
diff --git a/COURS01/obj/Debug/COURS01.exe b/COURS01/obj/Debug/COURS01.exe
index 40df7a9..4b3dc29 100644
Binary files a/COURS01/obj/Debug/COURS01.exe and b/COURS01/obj/Debug/COURS01.exe differ
diff --git a/COURS01/obj/Debug/COURS01.pdb b/COURS01/obj/Debug/COURS01.pdb
index c60cf80..134d772 100644
Binary files a/COURS01/obj/Debug/COURS01.pdb and b/COURS01/obj/Debug/COURS01.pdb differ