diff --git a/CampusAppWP8/CampusAppWP8/Model/MainModel.cs b/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
index 8a549d87..a88d6a99 100644
--- a/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
+++ b/CampusAppWP8/CampusAppWP8/Model/MainModel.cs
@@ -335,7 +335,7 @@ namespace CampusAppWP8
             {
                 if (this.file != null)
                 {
-                    string data = this.file.ReadFile();
+                    byte[] data = this.file.ReadFile();
 
                     if (data == null)
                     {
@@ -343,9 +343,9 @@ namespace CampusAppWP8
                     }
                     else
                     {
-                        if (!data.Equals(string.Empty))
+                        if (data.Length > 0)
                         {
-                            this.DeserializeModel(Encoding.UTF8.GetBytes(data));
+                            this.DeserializeModel(data);
                         }
 
                         this.RunOnIOCallback(this.OnLoaded);
@@ -494,7 +494,7 @@ namespace CampusAppWP8
             if ((this.IsFile() == true)
             && (fileName.Equals(string.Empty) == false))
             {
-                this.InitFile(CampusAppWP8.Utility.File.IOTypeRead.ReadSync, CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync);
+                this.InitFile();
             }
 
             if ((this.IsHttpApi() == true)
@@ -507,16 +507,12 @@ namespace CampusAppWP8
         /// <summary>
         /// Initializes the file object.
         /// </summary>
-        /// <param name="readType">read io type (Default: sync)</param>
-        /// <param name="writeType">write io type (Default: async)</param>
-        private void InitFile(
-            CampusAppWP8.Utility.File.IOTypeRead readType = CampusAppWP8.Utility.File.IOTypeRead.ReadSync, 
-            CampusAppWP8.Utility.File.IOTypeWrite writeType = CampusAppWP8.Utility.File.IOTypeWrite.WriteAsync)
+        private void InitFile()
         {
             if ((this.IsFile() == true)
             && (this.file == null))
             {
-                this.file = new CampusAppWP8.Utility.File(this.fileName, readType, writeType);
+                this.file = new CampusAppWP8.Utility.File(this.fileName);
             }
         }
 
@@ -537,7 +533,7 @@ namespace CampusAppWP8
         /// </summary>
         /// <param name="sender">sending object</param>
         /// <param name="e">event args</param>
-        private void OnLoadDataComplete(object sender, DownloadStringCompletedEventArgs e)
+        private void OnLoadDataComplete(object sender, OpenReadCompletedEventArgs e)
         {
             Exception downloadError = e.Error;
             if (downloadError != null)
@@ -546,11 +542,16 @@ namespace CampusAppWP8
             }
             else
             {
-                string downloadResult = e.Result;
-
-                if (downloadResult != null && !downloadResult.Equals(string.Empty))
+                byte[] data;
+                using (MemoryStream ms = new MemoryStream())
                 {
-                    this.DeserializeModel(Encoding.UTF8.GetBytes(downloadResult));
+                    e.Result.CopyTo(ms);
+                    data = ms.ToArray();
+                }
+
+                if (data != null && data.Length > 0)
+                {
+                    this.DeserializeModel(data);
                 }
 
                 this.RunOnIOCallback(this.OnLoaded);
diff --git a/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
index 1fec754a..78c5c024 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Exams/Exams.xaml.cs
@@ -14,6 +14,8 @@ namespace CampusAppWP8.Pages.Exams
     using CampusAppWP8.Utility;
     using CampusAppWP8.Utility.Lui.MessageBoxes;
     using Microsoft.Phone.Controls;
+    using System.Net;
+    using System.IO;
 
     /// <summary>Exams.</summary>
     /// <remarks>Stubbfel, 02.09.2013.</remarks>
@@ -74,6 +76,7 @@ namespace CampusAppWP8.Pages.Exams
         {
             this.SetupExamList();
             this.ProgressBar.Visibility = System.Windows.Visibility.Collapsed;
+            HttpRequest api = new HttpRequest();
         }
 
         /// <summary>Sets up the exam list.</summary>
diff --git a/CampusAppWP8/CampusAppWP8/Utility/File.cs b/CampusAppWP8/CampusAppWP8/Utility/File.cs
index 189a7250..61c6e1a1 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/File.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/File.cs
@@ -27,27 +27,15 @@ namespace CampusAppWP8.Utility
         /// </summary>
         private string filename = string.Empty;
 
-        /// <summary>
-        /// Read type.
-        /// </summary>
-        private IOTypeRead readType;
-
-        /// <summary>
-        /// Write type.
-        /// </summary>
-        private IOTypeWrite writeType;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="File" /> class.
         /// </summary>
         /// <param name="filename">file name</param>
         /// <param name="read">read type</param>
         /// <param name="write">write type</param>
-        public File(string filename, IOTypeRead read, IOTypeWrite write)
+        public File(string filename)
         {
             this.filename = filename;
-            this.readType = (read == IOTypeRead.INVALID) ? IOTypeRead.ReadAsync : read;
-            this.writeType = write;
         }
 
         /// <summary>
@@ -55,80 +43,18 @@ namespace CampusAppWP8.Utility
         /// </summary>
         public delegate void WriteCallbackFunc();
 
-        /// <summary>
-        /// IO read type ENUM.
-        /// </summary>
-        public enum IOTypeRead
-        {
-            /// <summary>
-            /// Invalid/unset state.
-            /// </summary>
-            INVALID = 0,
-
-            /// <summary>
-            /// Sync read.
-            /// </summary>
-            ReadSync = 1,
-
-            /// <summary>
-            /// Async read.
-            /// </summary>
-            ReadAsync = 2
-        }
-
-        /// <summary>
-        /// IO write type ENUM.
-        /// </summary>
-        public enum IOTypeWrite
-        {
-            /// <summary>
-            /// Invalid/unset state.
-            /// </summary>
-            INVALID = 0,
-
-            /// <summary>
-            /// Sync write.
-            /// </summary>
-            WriteSync = 1,
-
-            /// <summary>
-            /// Async write.
-            /// </summary>
-            WriteAsync = 2,
-
-            /// <summary>
-            /// Read only, no writing.
-            /// </summary>
-            ReadOnly = 3
-        }
-
         /// <summary>
         /// Read data from file to a string.
         /// </summary>
         /// <param name="ioType">read type</param>
         /// <returns>data string</returns>
-        public string ReadFile(IOTypeRead ioType = IOTypeRead.INVALID)
+        public byte[] ReadFile()
         {
-            string retValue = null;
+            byte[] retValue = null;
 
             if (this.Exist() == true)
             {
-                IOTypeRead tempType = ioType;
-
-                if (tempType == IOTypeRead.INVALID)
-                {
-                    tempType = this.readType;
-                }
-
-                if (tempType == IOTypeRead.ReadAsync)
-                {
-                    // retValue = this.ReadAsync();
-                    retValue = this.ReadSync();
-                }
-                else if (tempType == IOTypeRead.ReadSync)
-                {
-                    retValue = this.ReadSync();
-                }
+                retValue = this.ReadSync();
             }
 
             return retValue;
@@ -141,27 +67,8 @@ namespace CampusAppWP8.Utility
         /// <param name="onSavedCallback">callback function, called after writing is done.</param>
         /// <param name="onFailedCallback">callback function, called when writing failed.</param>
         /// <param name="ioType">write type.</param>
-        public void WriteFile(byte[] data, WriteCallbackFunc onSavedCallback, WriteCallbackFunc onFailedCallback, IOTypeWrite ioType = IOTypeWrite.INVALID)
+        public void WriteFile(byte[] data, WriteCallbackFunc onSavedCallback, WriteCallbackFunc onFailedCallback)
         {
-            IOTypeWrite tempType = ioType;
-           
-            if (tempType == IOTypeWrite.INVALID)
-            {
-                tempType = this.writeType;
-            }
-
-            /*
-            if (tempType == IOTypeWrite.WriteAsync)
-            {
-                this.WriteAsync(data, onSavedCallback, onFailedCallback);
-            }
-            else if (tempType == IOTypeWrite.WriteSync)
-            {
-                // this.WriteSync(data);
-                this.WriteAsync(data, onSavedCallback, onFailedCallback);
-            }
-            */
-
             Thread th = new Thread(delegate() { this.WriteAsync(data, onSavedCallback, onFailedCallback); });
             th.Start();
         }
@@ -189,44 +96,22 @@ namespace CampusAppWP8.Utility
         /// Read data synchronous from file.
         /// </summary>
         /// <returns>data string</returns>
-        private string ReadSync()
+        private byte[] ReadSync()
         {
-            string retValue = null;
+            byte[] retValue = null;
 
             using (Stream fileStream = File.LocalFolder.OpenStreamForReadAsync(this.filename).Result)
             {
-                using (StreamReader streamReader = new StreamReader(fileStream))
+                using (MemoryStream ms = new MemoryStream())
                 {
-                    retValue = streamReader.ReadToEnd();
+                    fileStream.CopyTo(ms);
+                    retValue = ms.ToArray();
                 }
             }
 
             return retValue;
         }
 
-        /// <summary>
-        /// Read data asynchronous from file.
-        /// </summary>
-        /// <returns>data string</returns>
-        private string ReadAsync()
-        {
-            string retValue = string.Empty;
-
-            return retValue;
-        }
-
-        /// <summary>
-        /// Write data synchronous to file.
-        /// </summary>
-        /// <param name="data">data array</param>
-        /// <returns>true, if succeeded</returns>
-        private bool WriteSync(byte[] data)
-        {
-            bool retValue = true;
-
-            return retValue;
-        }
-
         /// <summary>
         /// Write data asynchronous to file.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Utility/HttpRequest.cs b/CampusAppWP8/CampusAppWP8/Utility/HttpRequest.cs
index 810bd29b..87ce11dc 100644
--- a/CampusAppWP8/CampusAppWP8/Utility/HttpRequest.cs
+++ b/CampusAppWP8/CampusAppWP8/Utility/HttpRequest.cs
@@ -60,6 +60,13 @@ namespace CampusAppWP8.Utility
             client.DownloadStringAsync(url);
         }
 
+        public void HttpGet(Uri url, Action<object, OpenReadCompletedEventArgs> action)
+        {
+            WebClient client = new WebClient();
+            client.OpenReadCompleted += new OpenReadCompletedEventHandler(action);
+            client.OpenReadAsync(url);
+        }
+
         /// <summary>
         /// Method create the Url for the http-get-method
         /// </summary>