diff --git a/win_setup.iss b/win_setup.iss
index 5a954c9..824459c 100644
--- a/win_setup.iss
+++ b/win_setup.iss
@@ -40,9 +40,11 @@ BeveledLabel= {#AppVersion}.{#SetupVersion}
 [CustomMessages]
 fr.AppName=Modèles pour Revues.org
 fr.WordNotFound=Attention! La détection de Microsoft Word a échoué. Souhaitez-vous quand même poursuivre l'installation ?
+fr.PleaseCloseWord=Microsoft Word est actuellement en cours d'utilisation. Veuillez quitter tous les processus de Word en cours d'exécution puis cliquer sur OK.
 
 en.AppName=Revues.org Templates
 en.WordNotFound=Warning! Detection of Microsoft Word has failed. Do you want to force installation?
+en.PleaseCloseWord=Microsoft Word is currently running. Please exit all Microsoft Word processes before continuing.
 
 [Languages]
 Name: "fr"; MessagesFile: "compiler:Languages\French.isl"
@@ -58,6 +60,9 @@ Source: "src\img\revuesorg.ico"; DestDir: "{app}"; Flags: ignoreversion overwrit
 ; Anciens fichiers à supprimer
 Type: files; Name: "{userappdata}\Microsoft\Templates\revuesorg_complet.dot"
 
+[UninstallRun]
+Filename: "taskkill"; Parameters: "/im ""winword.exe"""; Flags: runhidden
+
 [Code]
 var
   Msg: String;
@@ -67,9 +72,30 @@ begin
   Result := DirExists(ExpandConstant('{userappdata}\Microsoft\Templates')) and DirExists(ExpandConstant('{userappdata}\Microsoft\Word\STARTUP'));
 end;
 
+function IsAppRunning(const FileName : string): Boolean;
+var
+  FSWbemLocator: Variant;
+  FWMIService   : Variant;
+  FWbemObjectSet: Variant;
+begin
+  Result := false;
+  FSWbemLocator := CreateOleObject('WBEMScripting.SWBEMLocator');
+  FWMIService := FSWbemLocator.ConnectServer('', 'root\CIMV2', '', '');
+  FWbemObjectSet := FWMIService.ExecQuery(Format('SELECT Name FROM Win32_Process Where Name="%s"',[FileName]));
+  Result := (FWbemObjectSet.Count > 0);
+  FWbemObjectSet := Unassigned;
+  FWMIService := Unassigned;
+  FSWbemLocator := Unassigned;
+end;
+
 function InitializeSetup(): Boolean;
+var
+  AskCloseWord: Boolean;
+
 begin
   Log('InitializeSetup called');
+
+  // Detection des templates
   Result := True;
   if WordExists() = False then
   begin
@@ -80,4 +106,19 @@ begin
       Result := True;
     end;
   end;
+
+  // Ne pas installer si process winword en cours
+  if Result then
+  begin
+      AskCloseWord := True;
+      while (IsAppRunning('winword.exe') and AskCloseWord) do
+      begin
+        Msg := CustomMessage('PleaseCloseWord');
+        if MsgBox(Msg, mbConfirmation, MB_OKCANCEL) = IDCANCEL then
+        begin
+          AskCloseWord := False;
+          Result := False;
+        end;
+      end;
+    end;
 end;