diff --git a/GUIs.Test.TestGUI/My Project/Application.Designer.vb b/GUIs.Test.TestGUI/My Project/Application.Designer.vb
index 9942632e..647fa3d6 100644
--- a/GUIs.Test.TestGUI/My Project/Application.Designer.vb	
+++ b/GUIs.Test.TestGUI/My Project/Application.Designer.vb	
@@ -32,7 +32,7 @@ Namespace My
         
         <Global.System.Diagnostics.DebuggerStepThroughAttribute()>  _
         Protected Overrides Sub OnCreateMainForm()
-            Me.MainForm = Global.TestGUI.frmDocViewPure
+            Me.MainForm = Global.TestGUI.frmDocView
         End Sub
     End Class
 End Namespace
diff --git a/GUIs.Test.TestGUI/My Project/Application.myapp b/GUIs.Test.TestGUI/My Project/Application.myapp
index 19b75e50..bc0296a8 100644
--- a/GUIs.Test.TestGUI/My Project/Application.myapp	
+++ b/GUIs.Test.TestGUI/My Project/Application.myapp	
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <MyApplicationData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <MySubMain>true</MySubMain>
-  <MainForm>frmDocViewPure</MainForm>
+  <MainForm>frmDocView</MainForm>
   <SingleInstance>false</SingleInstance>
   <ShutdownMode>0</ShutdownMode>
   <EnableVisualStyles>true</EnableVisualStyles>
diff --git a/GUIs.Test.TestGUI/frmDocView.Designer.vb b/GUIs.Test.TestGUI/frmDocView.Designer.vb
index b6da649b..cbb52374 100644
--- a/GUIs.Test.TestGUI/frmDocView.Designer.vb
+++ b/GUIs.Test.TestGUI/frmDocView.Designer.vb
@@ -22,25 +22,18 @@ Partial Class frmDocView
     'Das Bearbeiten mit dem Code-Editor ist nicht möglich.
     <System.Diagnostics.DebuggerStepThrough()> _
     Private Sub InitializeComponent()
-        Me.DocumentViewer1 = New DigitalData.Controls.DocumentViewer.DocumentViewer()
         Me.Panel1 = New System.Windows.Forms.Panel()
-        Me.TextBox1 = New System.Windows.Forms.TextBox()
+        Me.Button2 = New System.Windows.Forms.Button()
         Me.Button1 = New System.Windows.Forms.Button()
+        Me.TextBox1 = New System.Windows.Forms.TextBox()
         Me.OpenFileDialog1 = New System.Windows.Forms.OpenFileDialog()
+        Me.DocumentViewer1 = New DigitalData.Controls.DocumentViewer.DocumentViewer()
         Me.Panel1.SuspendLayout()
         Me.SuspendLayout()
         '
-        'DocumentViewer1
-        '
-        Me.DocumentViewer1.Dock = System.Windows.Forms.DockStyle.Bottom
-        Me.DocumentViewer1.FileLoaded = False
-        Me.DocumentViewer1.Location = New System.Drawing.Point(0, 43)
-        Me.DocumentViewer1.Name = "DocumentViewer1"
-        Me.DocumentViewer1.Size = New System.Drawing.Size(1079, 463)
-        Me.DocumentViewer1.TabIndex = 0
-        '
         'Panel1
         '
+        Me.Panel1.Controls.Add(Me.Button2)
         Me.Panel1.Controls.Add(Me.Button1)
         Me.Panel1.Controls.Add(Me.TextBox1)
         Me.Panel1.Dock = System.Windows.Forms.DockStyle.Fill
@@ -49,12 +42,14 @@ Partial Class frmDocView
         Me.Panel1.Size = New System.Drawing.Size(1079, 43)
         Me.Panel1.TabIndex = 1
         '
-        'TextBox1
+        'Button2
         '
-        Me.TextBox1.Location = New System.Drawing.Point(12, 12)
-        Me.TextBox1.Name = "TextBox1"
-        Me.TextBox1.Size = New System.Drawing.Size(846, 20)
-        Me.TextBox1.TabIndex = 0
+        Me.Button2.Location = New System.Drawing.Point(992, 10)
+        Me.Button2.Name = "Button2"
+        Me.Button2.Size = New System.Drawing.Size(75, 23)
+        Me.Button2.TabIndex = 1
+        Me.Button2.Text = "Unload File"
+        Me.Button2.UseVisualStyleBackColor = True
         '
         'Button1
         '
@@ -65,10 +60,26 @@ Partial Class frmDocView
         Me.Button1.Text = "Open File"
         Me.Button1.UseVisualStyleBackColor = True
         '
+        'TextBox1
+        '
+        Me.TextBox1.Location = New System.Drawing.Point(12, 12)
+        Me.TextBox1.Name = "TextBox1"
+        Me.TextBox1.Size = New System.Drawing.Size(846, 20)
+        Me.TextBox1.TabIndex = 0
+        '
         'OpenFileDialog1
         '
         Me.OpenFileDialog1.FileName = "OpenFileDialog1"
         '
+        'DocumentViewer1
+        '
+        Me.DocumentViewer1.Dock = System.Windows.Forms.DockStyle.Bottom
+        Me.DocumentViewer1.FileLoaded = False
+        Me.DocumentViewer1.Location = New System.Drawing.Point(0, 43)
+        Me.DocumentViewer1.Name = "DocumentViewer1"
+        Me.DocumentViewer1.Size = New System.Drawing.Size(1079, 463)
+        Me.DocumentViewer1.TabIndex = 0
+        '
         'frmDocView
         '
         Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
@@ -89,4 +100,5 @@ Partial Class frmDocView
     Friend WithEvents Button1 As Button
     Friend WithEvents TextBox1 As TextBox
     Friend WithEvents OpenFileDialog1 As OpenFileDialog
+    Friend WithEvents Button2 As Button
 End Class
diff --git a/GUIs.Test.TestGUI/frmDocView.vb b/GUIs.Test.TestGUI/frmDocView.vb
index 0c51674e..0769482b 100644
--- a/GUIs.Test.TestGUI/frmDocView.vb
+++ b/GUIs.Test.TestGUI/frmDocView.vb
@@ -13,4 +13,8 @@ Public Class frmDocView
         LogConfig = New LogConfig(LogConfig.PathType.Temp)
         DocumentViewer1.Init(LogConfig, "21182889975216572111813147150675976632")
     End Sub
+
+    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
+        DocumentViewer1.Done()
+    End Sub
 End Class
\ No newline at end of file
diff --git a/GUIs.Test.TestGUI/frmDocViewPure.Designer.vb b/GUIs.Test.TestGUI/frmDocViewPure.Designer.vb
index fdbabb49..b00c6a6a 100644
--- a/GUIs.Test.TestGUI/frmDocViewPure.Designer.vb
+++ b/GUIs.Test.TestGUI/frmDocViewPure.Designer.vb
@@ -28,7 +28,7 @@ Partial Class frmDocViewPure
         '
         'SpreadsheetControl1
         '
-        Me.SpreadsheetControl1.Location = New System.Drawing.Point(228, 101)
+        Me.SpreadsheetControl1.Location = New System.Drawing.Point(349, 187)
         Me.SpreadsheetControl1.Name = "SpreadsheetControl1"
         Me.SpreadsheetControl1.Size = New System.Drawing.Size(400, 200)
         Me.SpreadsheetControl1.TabIndex = 0
diff --git a/GUIs.Test.TestGUI/frmDocViewPure.vb b/GUIs.Test.TestGUI/frmDocViewPure.vb
index 012a6d02..2fa3fe66 100644
--- a/GUIs.Test.TestGUI/frmDocViewPure.vb
+++ b/GUIs.Test.TestGUI/frmDocViewPure.vb
@@ -7,9 +7,10 @@ Public Class frmDocViewPure
     End Sub
 
     Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
-        SpreadsheetControl1.Document.Dispose()
-        SpreadsheetControl1.Dispose()
-        SpreadsheetControl1 = Nothing
-
+        'SpreadsheetControl1.Document.Dispose()
+        'SpreadsheetControl1.Dispose()
+        'SpreadsheetControl1 = Nothing
+        SpreadsheetControl1.CreateNewDocument()
+        GC.Collect()
     End Sub
 End Class
\ No newline at end of file