diff --git a/misc/brecal.snk b/misc/brecal.snk
new file mode 100644
index 0000000..42f39ed
Binary files /dev/null and b/misc/brecal.snk differ
diff --git a/src/BreCalClient/BreCalClient.csproj b/src/BreCalClient/BreCalClient.csproj
index f430105..8f75d31 100644
--- a/src/BreCalClient/BreCalClient.csproj
+++ b/src/BreCalClient/BreCalClient.csproj
@@ -5,6 +5,13 @@
     <TargetFramework>net6.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWPF>true</UseWPF>
+    <SignAssembly>True</SignAssembly>
+    <StartupObject>BreCalClient.App</StartupObject>
+    <AssemblyOriginatorKeyFile>C:\git_lager\git_brcal\misc\brecal.snk</AssemblyOriginatorKeyFile>
+    <AssemblyVersion>0.1.0.0</AssemblyVersion>
+    <FileVersion>0.1.0.0</FileVersion>
+    <Title>Bremen calling client</Title>
+    <Description>A Windows WPF client for the Bremen calling API.</Description>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/BreCalClient/EditShipcallControl.xaml b/src/BreCalClient/EditShipcallControl.xaml
new file mode 100644
index 0000000..e0c7f99
--- /dev/null
+++ b/src/BreCalClient/EditShipcallControl.xaml
@@ -0,0 +1,12 @@
+<Window x:Class="BreCalClient.EditShipcallControl"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:BreCalClient"
+        mc:Ignorable="d"
+        Title="EditShipcallControl" Height="450" Width="800">
+    <Grid>
+        
+    </Grid>
+</Window>
diff --git a/src/BreCalClient/EditShipcallControl.xaml.cs b/src/BreCalClient/EditShipcallControl.xaml.cs
new file mode 100644
index 0000000..ec3d2c8
--- /dev/null
+++ b/src/BreCalClient/EditShipcallControl.xaml.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace BreCalClient
+{
+    /// <summary>
+    /// Interaction logic for EditShipcallControl.xaml
+    /// </summary>
+    public partial class EditShipcallControl : Window
+    {
+        public EditShipcallControl()
+        {
+            InitializeComponent();
+        }
+    }
+}