diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
index de490af5..9db1581b 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.Designer.cs
@@ -159,6 +159,15 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die /Pages/Events/EventIndexPage.xaml ähnelt.
+        /// </summary>
+        internal static string PathEvents_EventsIndexPage {
+            get {
+                return ResourceManager.GetString("PathEvents_EventsIndexPage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die /Pages/Lecture/LecturePage.xaml ähnelt.
         /// </summary>
@@ -195,6 +204,33 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die /Pages/Webmail/WebmailPage.xaml ähnelt.
+        /// </summary>
+        internal static string PathMail_WebMailPage {
+            get {
+                return ResourceManager.GetString("PathMail_WebMailPage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die /Pages/Mensa/MensaPage.xaml ähnelt.
+        /// </summary>
+        internal static string PathMensa_MensaPage {
+            get {
+                return ResourceManager.GetString("PathMensa_MensaPage", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die /Pages/News/NewsIndexPage.xaml ähnelt.
+        /// </summary>
+        internal static string PathNews_NewsIndexPage {
+            get {
+                return ResourceManager.GetString("PathNews_NewsIndexPage", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die http://www.zv.tu-cottbus.de/LSFveranst/LSF4 ähnelt.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
index 51ff2160..8c2fcc88 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/Constants.resx
@@ -174,4 +174,16 @@
   <data name="PathLecture_LecturePage" xml:space="preserve">
     <value>/Pages/Lecture/LecturePage.xaml</value>
   </data>
+  <data name="PathEvents_EventsIndexPage" xml:space="preserve">
+    <value>/Pages/Events/EventIndexPage.xaml</value>
+  </data>
+  <data name="PathMail_WebMailPage" xml:space="preserve">
+    <value>/Pages/Webmail/WebmailPage.xaml</value>
+  </data>
+  <data name="PathMensa_MensaPage" xml:space="preserve">
+    <value>/Pages/Mensa/MensaPage.xaml</value>
+  </data>
+  <data name="PathNews_NewsIndexPage" xml:space="preserve">
+    <value>/Pages/News/NewsIndexPage.xaml</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
index b2358b3f..92b03bde 100644
--- a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
+++ b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml
@@ -42,7 +42,7 @@
             </Grid.ColumnDefinitions>
 
             <!-- Row 0 -->
-            <Button Name="TimeTableAppButton" Grid.Row="0" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="TimeTableAppButton" Grid.Row="0" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkTimetable" Source="/Assets/icons/schedule_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightTimetable" Source="/Assets/icons/schedule_159_light.png" Height="100" Visibility="Visible"/>
@@ -50,7 +50,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="LectureAppButton" Grid.Row="0" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="LectureAppButton" Grid.Row="0" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" Click="OpenLectureApp">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkLectures" Source="/Assets/icons/lectures_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightLectures" Source="/Assets/icons/lectures_159_light.png" Height="100" Visibility="Visible"/>
@@ -58,7 +58,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="NewsAppButton" Grid.Row="0" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="NewsAppButton" Grid.Row="0" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0"  Click="OpenNewsApp">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkNews" Source="/Assets/icons/news_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightNews" Source="/Assets/icons/news_159_light.png" Height="100" Visibility="Visible"/>
@@ -67,7 +67,7 @@
             </Button>
 
             <!-- Row 1 -->
-            <Button Name="MensaAppButton" Grid.Row="1" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="MensaAppButton" Grid.Row="1" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0"  Click="OpenMensaApp">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkMensa" Source="/Assets/icons/mensa_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightMensa" Source="/Assets/icons/mensa_159_light.png" Height="100" Visibility="Visible"/>
@@ -75,7 +75,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="CampusMapAppButton" Grid.Row="1" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="CampusMapAppButton" Grid.Row="1" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkCampus" Source="/Assets/icons/campus_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightCampus" Source="/Assets/icons/campus_159_light.png" Height="100" Visibility="Visible"/>
@@ -83,7 +83,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="HomeworkAppButton" Grid.Row="1" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="HomeworkAppButton" Grid.Row="1" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkHomework" Source="/Assets/icons/homework_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightHomework" Source="/Assets/icons/homework_159_light.png" Height="100" Visibility="Visible"/>
@@ -92,7 +92,7 @@
             </Button>
 
             <!-- Row 2 -->
-            <Button Name="DepartmentAppButton" Grid.Row="2" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="DepartmentAppButton" Grid.Row="2" Grid.Column="0" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkDepartments" Source="/Assets/icons/departments_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightDepartments" Source="/Assets/icons/departments_159_light.png" Height="100" Visibility="Visible"/>
@@ -100,7 +100,7 @@
                 </StackPanel>
             </Button>
 
-            <Button  Name="EventAppButton" Grid.Row="2" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button  Name="EventAppButton" Grid.Row="2" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0"  Click="OpenEventsApp">
                 <StackPanel  Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkEvents" Source="/Assets/icons/news_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightEvents" Source="/Assets/icons/news_159_light.png" Height="100" Visibility="Visible"/>
@@ -108,7 +108,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="MailAppButton" Grid.Row="2" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="MailAppButton" Grid.Row="2" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0"  Click="OpenWebMailApp">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkWebmail" Source="/Assets/icons/webmail_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightWebmail" Source="/Assets/icons/webmail_159_light.png" Height="100" Visibility="Visible"/>
@@ -117,7 +117,7 @@
             </Button>
 
             <!-- Row 3 -->
-            <Button Name="OpenHoursAppButton" Grid.Row="3" Grid.Column="0"  BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="OpenHoursAppButton" Grid.Row="3" Grid.Column="0"  BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkOpenhours" Source="/Assets/icons/openhours_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightOpenhours" Source="/Assets/icons/openhours_159_light.png" Height="100" Visibility="Visible"/>
@@ -125,7 +125,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="OSAAppButton" Grid.Row="3" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="OSAAppButton" Grid.Row="3" Grid.Column="1" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkStudentcouncil" Source="/Assets/icons/student_council_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightStudentcouncil" Source="/Assets/icons/student_council_159_light.png" Height="100" Visibility="Visible"/>
@@ -133,7 +133,7 @@
                 </StackPanel>
             </Button>
 
-            <Button Name="LinkAppButton" Grid.Row="3" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0">
+            <Button Name="LinkAppButton" Grid.Row="3" Grid.Column="2" BorderBrush="{x:Null}" Background="{x:Null}" VerticalContentAlignment="Stretch" HorizontalContentAlignment="Stretch" BorderThickness="0" Padding="0" IsEnabled="False">
                 <StackPanel Height="auto" Margin="-12,-12,-12,-12">
                     <Image x:Name="ImgDarkLink" Source="/Assets/icons/link_159_dark.png" Height="100" Visibility="Collapsed"/>
                     <Image x:Name="ImgLightLink" Source="/Assets/icons/link_159_light.png" Height="100" Visibility="Visible"/>
diff --git a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
index d3eefb73..6d764d7f 100644
--- a/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/pages/StartPage.xaml.cs
@@ -1,26 +1,42 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Navigation;
-using Microsoft.Phone.Controls;
-using Microsoft.Phone.Shell;
-using Windows.UI.Input;
-
+//-----------------------------------------------------------------------
+// <copyright file="StartPage.xaml.cs" company="BTU/IIT">
+//     Company copyright tag.
+// </copyright>
+// <author>stubbfel</author>
+// <sience>21.05.2013</sience>
+//----------------------------------------------------------------------
 namespace CampusAppWP8.Pages
 {
+    using System;
+    using System.Windows;
+    using System.Windows.Controls;
+    using System.Windows.Navigation;
+    using CampusAppWP8.Resources;
+    using Microsoft.Phone.Controls;
+
+    /// <summary>
+    ///  Class for the StartPage
+    /// </summary>
     public partial class StartPage : PhoneApplicationPage
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="StartPage" /> class.
+        /// </summary>
         public StartPage()
         {
-            InitializeComponent();
+            this.InitializeComponent();
 
             if ((Visibility)Application.Current.Resources["PhoneDarkThemeVisibility"] == Visibility.Visible)
+            {
                 this.SetIconThemeToDark();
+            }
         }
 
+        /// <summary>
+        /// Method handle OrientationPage
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
         private void PhoneApplicationPage_OrientationChanged(object sender, OrientationChangedEventArgs e)
         {
             // Switch the placement of the buttons based on an orientation change.
@@ -35,11 +51,10 @@ namespace CampusAppWP8.Pages
                 LinkAppButton.SetValue(Grid.RowProperty, 2);
                 LinkAppButton.SetValue(Grid.ColumnProperty, 3);
                 ContentPanel.Margin = new Thickness(12, -24, 0, 0);
-          
-            }
-            // If not in portrait, move buttonList content to visible row and column.
+            }           
             else
             {
+                // If not in portrait, move buttonList content to visible row and column.
                 OpenHoursAppButton.SetValue(Grid.RowProperty, 3);
                 OpenHoursAppButton.SetValue(Grid.ColumnProperty, 0);
 
@@ -49,10 +64,12 @@ namespace CampusAppWP8.Pages
                 LinkAppButton.SetValue(Grid.RowProperty, 3);
                 LinkAppButton.SetValue(Grid.ColumnProperty, 2);
                 ContentPanel.Margin = new Thickness(12, 0, 0, 0);
-
             }
         }
 
+        /// <summary>
+        /// Method set all icons for the DarkTheme
+        /// </summary>
         private void SetIconThemeToDark()
         {
             this.ImgLightCampus.Visibility = Visibility.Collapsed;
@@ -81,5 +98,60 @@ namespace CampusAppWP8.Pages
             this.ImgDarkTimetable.Visibility = Visibility.Visible;
             this.ImgDarkWebmail.Visibility = Visibility.Visible;
         }
+
+        /// <summary>
+        /// start the LectureApp
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
+        private void OpenLectureApp(object sender, RoutedEventArgs e)
+        {
+            Uri url = new Uri(Constants.PathLecture_LecturePage, UriKind.Relative);
+            NavigationService.Navigate(url);
+        }
+
+        /// <summary>
+        /// start the NewsApp
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
+        private void OpenNewsApp(object sender, RoutedEventArgs e)
+        {
+            Uri url = new Uri(Constants.PathNews_NewsIndexPage, UriKind.Relative);
+            NavigationService.Navigate(url);
+        }
+
+        /// <summary>
+        /// start the EventsApp
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
+        private void OpenEventsApp(object sender, RoutedEventArgs e)
+        {
+            Uri url = new Uri(Constants.PathEvents_EventsIndexPage, UriKind.Relative);
+            NavigationService.Navigate(url);
+        }
+
+        /// <summary>
+        /// start the MensaApp
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
+        private void OpenMensaApp(object sender, RoutedEventArgs e)
+        {
+            Uri url = new Uri(Constants.PathMensa_MensaPage, UriKind.Relative);
+            NavigationService.Navigate(url);
+        }
+
+        /// <summary>
+        /// start the WebmailApp
+        /// </summary>
+        /// <param name="sender">Caller of the function</param>
+        /// <param name="e">some EventArgs</param>
+        private void OpenWebMailApp(object sender, RoutedEventArgs e)
+        {
+            Uri url = new Uri(Constants.PathMail_WebMailPage, UriKind.Relative);
+            NavigationService.Navigate(url);
+        }
     }
 }
\ No newline at end of file