diff --git a/.gitignore b/.gitignore
index 4af30d2..2cbc30e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ Tests/Resources/Sql/Create.sql
 *.exe
 !WinziPrint.exe
 *.sqlite3
+*.zip
diff --git a/Elwig/Windows/AboutWindow.xaml b/Elwig/Windows/AboutWindow.xaml
index 4f6b705..9d2a6d6 100644
--- a/Elwig/Windows/AboutWindow.xaml
+++ b/Elwig/Windows/AboutWindow.xaml
@@ -15,7 +15,7 @@
             <Bold>Website:</Bold> <Hyperlink NavigateUri="https://elwig.at/" RequestNavigate="Hyperlink_RequestNavigate">https://elwig.at/</Hyperlink><LineBreak/>
             <Bold>Entwickler:</Bold> Lorenz Stechauner, Thomas Hilscher<LineBreak/>
             <Bold>Kontakt:</Bold> <Hyperlink NavigateUri="mailto:lorenz.stechauner@necronda.net" RequestNavigate="Hyperlink_RequestNavigate">lorenz.stechauner@necronda.net</Hyperlink>, <Hyperlink NavigateUri="mailto:thomas.hilscher@gmail.com" RequestNavigate="Hyperlink_RequestNavigate">thomas.hilscher@gmail.com</Hyperlink><LineBreak/>
-            <Bold>Quellcode:</Bold> <Hyperlink NavigateUri="https://git.necronda.net/winzer/elwig" RequestNavigate="Hyperlink_RequestNavigate">https://git.necronda.net/winzer/elwig</Hyperlink><LineBreak/>
+            <Bold>Quellcode:</Bold> <Hyperlink NavigateUri="C:\Program Files\Elwig\src" RequestNavigate="Hyperlink_RequestNavigate_Explorer">C:\Program Files\Elwig\src</Hyperlink>, <Hyperlink NavigateUri="https://git.necronda.net/winzer/elwig" RequestNavigate="Hyperlink_RequestNavigate">https://git.necronda.net/winzer/elwig</Hyperlink><LineBreak/>
             <Bold>Entwicklungszeitraum:</Bold> 2022–2026<LineBreak/>
             <LineBreak/>
             <Bold>Verwendete Technologien:</Bold><LineBreak/>
diff --git a/Elwig/Windows/AboutWindow.xaml.cs b/Elwig/Windows/AboutWindow.xaml.cs
index 4dce73d..3f5a8a8 100644
--- a/Elwig/Windows/AboutWindow.xaml.cs
+++ b/Elwig/Windows/AboutWindow.xaml.cs
@@ -11,7 +11,15 @@ namespace Elwig.Windows {
         }
 
         private void Hyperlink_RequestNavigate(object sender, RequestNavigateEventArgs e) {
-            Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri) { UseShellExecute = true });
+            try {
+                Process.Start(new ProcessStartInfo(e.Uri.AbsoluteUri) { UseShellExecute = true });
+            } catch { }
+        }
+
+        private void Hyperlink_RequestNavigate_Explorer(object sender, RequestNavigateEventArgs e) {
+            try {
+                Process.Start("explorer.exe", e.Uri.AbsoluteUri);
+            } catch { }
         }
     }
 }
diff --git a/Installer/Files/README.txt b/Installer/Files/README.txt
new file mode 100644
index 0000000..fff54f8
--- /dev/null
+++ b/Installer/Files/README.txt
@@ -0,0 +1,17 @@
+
+Elwig
+=====
+
+Source code
+C:\Program Files\Elwig\src\
+https://git.necronda.net/winzer/elwig
+
+Installation folder
+C:\Program Files\Elwig\
+
+Data and configuration folder
+C:\ProgramData\Elwig\
+- config.ini       : main configuration file
+- database.sqlite3 : stores all data
+- imported.txt     : list of all imported *.elwig.zip files to not automatically import them again
+- mails\           : sent/outgoing email log
diff --git a/Installer/Folders.wxs b/Installer/Folders.wxs
index 46e4dea..6f574f6 100644
--- a/Installer/Folders.wxs
+++ b/Installer/Folders.wxs
@@ -3,7 +3,9 @@
   <Fragment>
     <!-- C:\Program Files (x86)\Elwig or C:\Program Files\Elwig -->
     <StandardDirectory Id="ProgramFiles64Folder">
-      <Directory Id="InstallFolder" Name="!(bind.Property.ProductName)" />
+      <Directory Id="InstallFolder" Name="!(bind.Property.ProductName)">
+        <Directory Id="SourceFolder" Name="src"/>
+      </Directory>
     </StandardDirectory>
 
     <!-- C:\ProgramData\Elwig -->
diff --git a/Installer/Installer.wixproj b/Installer/Installer.wixproj
index e609582..552d3e4 100644
--- a/Installer/Installer.wixproj
+++ b/Installer/Installer.wixproj
@@ -34,7 +34,11 @@
       <DefineConstants>ProductVersion=$(ElwigFileVersion);BuildPath=..\Elwig\bin\Publish;ElwigProjectDir=..\Elwig</DefineConstants>
     </PropertyGroup>
   </Target>
+  <Target Name="CreateSourceArchive" BeforeTargets="BeforeBuild">
+    <Exec Command="git -C .. archive -o $(ProjectDir)\Files\elwig.zip HEAD" />
+  </Target>
   <ItemGroup>
     <None Include="Files\config.ini" />
+    <None Include="Files\README.txt" />
   </ItemGroup>
 </Project>
diff --git a/Installer/MainComponents.wxs b/Installer/MainComponents.wxs
index acf9adb..79f35fc 100644
--- a/Installer/MainComponents.wxs
+++ b/Installer/MainComponents.wxs
@@ -4,9 +4,15 @@
       <Component Directory="InstallFolder">
         <File Source="$(var.ElwigProjectDir)\bin\Publish\Elwig.exe" Id="Elwig.exe"/>
       </Component>
+      <Component Directory="SourceFolder">
+        <File Source="$(ProjectDir)\Files\elwig.zip" Id="elwig.zip"/>
+      </Component>
       <Component Directory="ConfigFolder" Permanent="true" NeverOverwrite="true">
         <File Source="$(ProjectDir)\Files\config.ini" Id="config.ini"/>
       </Component>
+      <Component Directory="ConfigFolder">
+        <File Source="$(ProjectDir)\Files\README.txt" Id="README.txt"/>
+      </Component>
     </ComponentGroup>
   </Fragment>
 </Wix>