diff --git a/PrototypChat/LoginMaske.xaml.cs b/PrototypChat/LoginMaske.xaml.cs
index 4cba486..fd182c5 100644
--- a/PrototypChat/LoginMaske.xaml.cs
+++ b/PrototypChat/LoginMaske.xaml.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Net;
+using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using System.Web;
@@ -28,6 +29,8 @@ namespace ownChat
         public LoginMaske()
         {
             InitializeComponent();
+
+            this.Title = "ownChat Desktop Version " + typeof(LoginMaske).Assembly.GetName().Version;
         }
 
 
diff --git a/PrototypChat/Properties/AssemblyInfo.cs b/PrototypChat/Properties/AssemblyInfo.cs
index 3df1fa4..9ea9161 100644
--- a/PrototypChat/Properties/AssemblyInfo.cs
+++ b/PrototypChat/Properties/AssemblyInfo.cs
@@ -51,5 +51,5 @@ using System.Windows;
 // Sie können alle Werte angeben oder Standardwerte für die Build- und Revisionsnummern verwenden,
 // übernehmen, indem Sie "*" eingeben:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("1.0.0.2")]
+[assembly: AssemblyFileVersion("1.0.0.2")]
diff --git a/PrototypChat/PrototypChat.csproj b/PrototypChat/PrototypChat.csproj
index f6f6aa2..d361c74 100644
--- a/PrototypChat/PrototypChat.csproj
+++ b/PrototypChat/PrototypChat.csproj
@@ -28,8 +28,8 @@
     <InstallUrl>https://app5.bewoplaner.de/chat/</InstallUrl>
     <ProductName>ownChat Desktop</ProductName>
     <PublisherName>beyondSoft GmbH</PublisherName>
-    <MinimumRequiredVersion>1.0.0.1</MinimumRequiredVersion>
-    <ApplicationRevision>2</ApplicationRevision>
+    <MinimumRequiredVersion>1.0.0.2</MinimumRequiredVersion>
+    <ApplicationRevision>3</ApplicationRevision>
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <CreateDesktopShortcut>true</CreateDesktopShortcut>
@@ -65,7 +65,7 @@
     <GenerateManifests>true</GenerateManifests>
   </PropertyGroup>
   <PropertyGroup>
-    <SignManifests>false</SignManifests>
+    <SignManifests>true</SignManifests>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json">
diff --git a/PrototypChat/PrototypChat_TemporaryKey.pfx b/PrototypChat/PrototypChat_TemporaryKey.pfx
new file mode 100644
index 0000000..bfa12ed
Binary files /dev/null and b/PrototypChat/PrototypChat_TemporaryKey.pfx differ