diff --git a/inquirer.js b/inquirer.js
index cce7014..b6bcdfa 100644
--- a/inquirer.js
+++ b/inquirer.js
@@ -14,14 +14,30 @@
         if (!inqapp)
             inqapp = merger.app("inquirer", {
                 title: "inquirer",
+                icon: icon,
+                windows: [merger.ui.window("Wmain", {
+                    title: "Error",
+                    width: 400,
+                    height: 250,
+                    content: [merger.ui.label("Lerror", {
+                        top: 10,
+                        left: 10,
+                        text: "---"
+                    })],
+                    onClose: function () {
+                        merger.leave();
+                    }
+                })],
+                mainWindow: "Wmain",
+                onLoad: function () {
 
+                }
             });
         return inqapp;
     }
 
     function show() {
-        getApp().show();
-        jsTK.desktop();
+        getApp().focus();
         var w = jsTK.get("Werror");
         if (!w) {
             w = jsTK.window("Werror", {
diff --git a/merger/core.js b/merger/core.js
index d61d93b..af68939 100644
--- a/merger/core.js
+++ b/merger/core.js
@@ -158,6 +158,7 @@
         c.append = function (control) {
             this.appendChild(control);
             this.controls[control.getId()] = control;
+            control.parent = this;
         }
         c.setContent = function (ctt) {
             for (var i = 0; i < ctt.length; i++)
@@ -315,15 +316,14 @@
     function app(id, def) {
         if (ui.app[id])
             throw new Error("Application '" + id + "' already exists");
-        var a = {}
+        var a = {}, windows = def.windows, i;
         ui.app[id] = a;
         a.merge({
             getId: function () {
                 return id;
             },
             title: id,
-            mainWindow: undefined,
-            window: {},
+            windows: {},
             menu: undefined,
             onLoad: function () {
 
@@ -342,9 +342,16 @@
                     this.onEnter();
             }
         });
+        delete (def.windows);
         a.merge(def);
+        if (windows)
+            for (i = 0; i < windows.length; i++) {
+                var win = windows[i];
+                a.windows[win.getId()] = win;
+                win.parent = a;
+            }
         if (a.mainWindow)
-            a.window[a.mainWindow.getId()] = a.mainWindow;
+            a.mainWindow = a.windows[a.mainWindow];
         if (a.onLoad)
             a.onLoad();
         return a;