diff --git a/pglab/ApplicationWindow.cpp b/pglab/ApplicationWindow.cpp
deleted file mode 100644
index dd1c511..0000000
--- a/pglab/ApplicationWindow.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-#include "ApplicationWindow.h"
-#include "ui_ApplicationWindow.h"
-
-ApplicationWindow::ApplicationWindow(QWidget *parent) :
-	QMainWindow(parent),
-	ui(new Ui::ApplicationWindow)
-{
-	ui->setupUi(this);
-}
-
-ApplicationWindow::~ApplicationWindow()
-{
-	delete ui;
-}
diff --git a/pglab/ApplicationWindow.h b/pglab/ApplicationWindow.h
deleted file mode 100644
index b65d4e4..0000000
--- a/pglab/ApplicationWindow.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#ifndef APPLICATIONWINDOW_H
-#define APPLICATIONWINDOW_H
-
-#include <QMainWindow>
-
-namespace Ui {
-class ApplicationWindow;
-}
-
-class ApplicationWindow : public QMainWindow
-{
-	Q_OBJECT
-
-public:
-	explicit ApplicationWindow(QWidget *parent = 0);
-	~ApplicationWindow();
-
-private:
-	Ui::ApplicationWindow *ui;
-};
-
-#endif // APPLICATIONWINDOW_H
diff --git a/pglab/ApplicationWindow.ui b/pglab/ApplicationWindow.ui
deleted file mode 100644
index b6faa92..0000000
--- a/pglab/ApplicationWindow.ui
+++ /dev/null
@@ -1,145 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>ApplicationWindow</class>
- <widget class="QMainWindow" name="ApplicationWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>314</width>
-    <height>672</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>MainWindow</string>
-  </property>
-  <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout">
-    <property name="spacing">
-     <number>0</number>
-    </property>
-    <property name="leftMargin">
-     <number>0</number>
-    </property>
-    <property name="topMargin">
-     <number>0</number>
-    </property>
-    <property name="rightMargin">
-     <number>0</number>
-    </property>
-    <property name="bottomMargin">
-     <number>0</number>
-    </property>
-    <item>
-     <widget class="QFrame" name="frame">
-      <property name="frameShape">
-       <enum>QFrame::StyledPanel</enum>
-      </property>
-      <property name="frameShadow">
-       <enum>QFrame::Raised</enum>
-      </property>
-      <layout class="QVBoxLayout" name="verticalLayout_2">
-       <property name="spacing">
-        <number>0</number>
-       </property>
-       <property name="leftMargin">
-        <number>0</number>
-       </property>
-       <property name="topMargin">
-        <number>0</number>
-       </property>
-       <property name="rightMargin">
-        <number>0</number>
-       </property>
-       <property name="bottomMargin">
-        <number>0</number>
-       </property>
-       <item>
-        <widget class="QFrame" name="frame_2">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Maximum" vsizetype="Preferred">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="frameShape">
-          <enum>QFrame::StyledPanel</enum>
-         </property>
-         <property name="frameShadow">
-          <enum>QFrame::Raised</enum>
-         </property>
-         <layout class="QHBoxLayout" name="horizontalLayout">
-          <property name="spacing">
-           <number>0</number>
-          </property>
-          <property name="leftMargin">
-           <number>0</number>
-          </property>
-          <property name="topMargin">
-           <number>0</number>
-          </property>
-          <property name="rightMargin">
-           <number>0</number>
-          </property>
-          <property name="bottomMargin">
-           <number>0</number>
-          </property>
-          <item>
-           <widget class="QComboBox" name="comboBox">
-            <property name="sizePolicy">
-             <sizepolicy hsizetype="Maximum" vsizetype="Maximum">
-              <horstretch>1</horstretch>
-              <verstretch>1</verstretch>
-             </sizepolicy>
-            </property>
-            <property name="frame">
-             <bool>false</bool>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QToolButton" name="toolButton">
-            <property name="text">
-             <string>...</string>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
-       <item>
-        <widget class="QFrame" name="frame_3">
-         <property name="sizePolicy">
-          <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
-           <horstretch>0</horstretch>
-           <verstretch>0</verstretch>
-          </sizepolicy>
-         </property>
-         <property name="frameShape">
-          <enum>QFrame::StyledPanel</enum>
-         </property>
-         <property name="frameShadow">
-          <enum>QFrame::Raised</enum>
-         </property>
-        </widget>
-       </item>
-      </layout>
-     </widget>
-    </item>
-   </layout>
-  </widget>
-  <widget class="QMenuBar" name="menubar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>314</width>
-     <height>25</height>
-    </rect>
-   </property>
-  </widget>
-  <widget class="QStatusBar" name="statusbar"/>
- </widget>
- <resources/>
- <connections/>
-</ui>
diff --git a/pglab/pglab.pro b/pglab/pglab.pro
index d492635..652a3e8 100644
--- a/pglab/pglab.pro
+++ b/pglab/pglab.pro
@@ -54,7 +54,6 @@ SOURCES += main.cpp\
     ColumnTableModel.cpp \
     NamespaceFilterWidget.cpp \
     NamespaceItemModel.cpp \
-    ApplicationWindow.cpp \
     ConstraintModel.cpp \
     IconColumnDelegate.cpp \
     IndexModel.cpp \
@@ -118,7 +117,6 @@ HEADERS  += \
     ColumnTableModel.h \
     NamespaceFilterWidget.h \
     NamespaceItemModel.h \
-    ApplicationWindow.h \
     ConstraintModel.h \
     IconColumnDelegate.h \
     IndexModel.h \
@@ -168,7 +166,6 @@ FORMS    += \
     ProcessStdioWidget.ui \
     TablesPage.ui \
     NamespaceFilterWidget.ui \
-    ApplicationWindow.ui \
     CrudTab.ui \
     CodeGenerator.ui \
     DatabaseWindow.ui