diff --git a/ConfigCreator/App.config b/ConfigCreator/App.config
index 30242f85..14d631fc 100644
--- a/ConfigCreator/App.config
+++ b/ConfigCreator/App.config
@@ -1,8 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <configSections>
     <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System">
-      <section name="DevExpress.LookAndFeel.Design.AppSettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
+      <section name="DevExpress.LookAndFeel.Design.AppSettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
     </sectionGroup>
   </configSections>
   <applicationSettings>
@@ -41,19 +41,19 @@
         <value></value>
       </setting>
       <setting name="CustomPaletteCollection" serializeAs="Xml">
-        <value />
+        <value/>
       </setting>
     </DevExpress.LookAndFeel.Design.AppSettings>
   </applicationSettings>
   <startup>
-    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />
+    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
   </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
-        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0" />
+        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/ConfigCreator/MonoRepoUtils.vbproj b/ConfigCreator/MonoRepoUtils.vbproj
index 10ba248c..51d85c72 100644
--- a/ConfigCreator/MonoRepoUtils.vbproj
+++ b/ConfigCreator/MonoRepoUtils.vbproj
@@ -11,9 +11,10 @@
     <AssemblyName>DigitalData.GUIs.MonoRepoUtils</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>WindowsForms</MyType>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
diff --git a/ConfigCreator/My Project/Resources.Designer.vb b/ConfigCreator/My Project/Resources.Designer.vb
index 06c64bc1..e45c1e0a 100644
--- a/ConfigCreator/My Project/Resources.Designer.vb	
+++ b/ConfigCreator/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/ConfigCreator/My Project/Settings.Designer.vb b/ConfigCreator/My Project/Settings.Designer.vb
index bbd55f77..b6300054 100644
--- a/ConfigCreator/My Project/Settings.Designer.vb	
+++ b/ConfigCreator/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.8.1.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/Controls.DocumentViewer/App.config b/Controls.DocumentViewer/App.config
index a86c6465..ac126d38 100644
--- a/Controls.DocumentViewer/App.config
+++ b/Controls.DocumentViewer/App.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup>
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
     </startup>
 </configuration>
diff --git a/Controls.DocumentViewer/DocumentViewer.vbproj b/Controls.DocumentViewer/DocumentViewer.vbproj
index 26ea61c8..f7fa0295 100644
--- a/Controls.DocumentViewer/DocumentViewer.vbproj
+++ b/Controls.DocumentViewer/DocumentViewer.vbproj
@@ -12,7 +12,7 @@
     <AssemblyName>DigitalData.Controls.DocumentViewer</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Windows</MyType>
-    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Controls.LookupGrid/LookupControl.vbproj b/Controls.LookupGrid/LookupControl.vbproj
index d7ed49f5..31d7357d 100644
--- a/Controls.LookupGrid/LookupControl.vbproj
+++ b/Controls.LookupGrid/LookupControl.vbproj
@@ -10,7 +10,8 @@
     <AssemblyName>DigitalData.Controls.LookupGrid</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Windows</MyType>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -104,6 +105,7 @@
     <Compile Include="My Project\Application.Designer.vb">
       <AutoGen>True</AutoGen>
       <DependentUpon>Application.myapp</DependentUpon>
+      <DesignTime>True</DesignTime>
     </Compile>
     <Compile Include="My Project\Resources.Designer.vb">
       <AutoGen>True</AutoGen>
diff --git a/Controls.LookupGrid/My Project/Resources.Designer.vb b/Controls.LookupGrid/My Project/Resources.Designer.vb
index b3e49c5d..57c2e37e 100644
--- a/Controls.LookupGrid/My Project/Resources.Designer.vb	
+++ b/Controls.LookupGrid/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/Controls.LookupGrid/My Project/Settings.Designer.vb b/Controls.LookupGrid/My Project/Settings.Designer.vb
index b0fbc3f3..5ce79aea 100644
--- a/Controls.LookupGrid/My Project/Settings.Designer.vb	
+++ b/Controls.LookupGrid/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.7.0.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/Controls.LookupGrid/Resources/Strings.Designer.vb b/Controls.LookupGrid/Resources/Strings.Designer.vb
index 836aa51a..c629698e 100644
--- a/Controls.LookupGrid/Resources/Strings.Designer.vb
+++ b/Controls.LookupGrid/Resources/Strings.Designer.vb
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute()>  _
     Friend Class Strings
diff --git a/GUIs.ClipboardWatcher/ClipboardWatcher.vbproj b/GUIs.ClipboardWatcher/ClipboardWatcher.vbproj
index 3e716ad6..65c8d8bf 100644
--- a/GUIs.ClipboardWatcher/ClipboardWatcher.vbproj
+++ b/GUIs.ClipboardWatcher/ClipboardWatcher.vbproj
@@ -10,7 +10,8 @@
     <AssemblyName>DigitalData.GUIs.ClipboardWatcher</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Windows</MyType>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -136,6 +137,7 @@
     <Compile Include="My Project\Application.Designer.vb">
       <AutoGen>True</AutoGen>
       <DependentUpon>Application.myapp</DependentUpon>
+      <DesignTime>True</DesignTime>
     </Compile>
     <Compile Include="My Project\Resources.Designer.vb">
       <AutoGen>True</AutoGen>
diff --git a/GUIs.ClipboardWatcher/My Project/Resources.Designer.vb b/GUIs.ClipboardWatcher/My Project/Resources.Designer.vb
index 36236405..badbc543 100644
--- a/GUIs.ClipboardWatcher/My Project/Resources.Designer.vb	
+++ b/GUIs.ClipboardWatcher/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/GUIs.ClipboardWatcher/My Project/Settings.Designer.vb b/GUIs.ClipboardWatcher/My Project/Settings.Designer.vb
index 58785339..fadcf464 100644
--- a/GUIs.ClipboardWatcher/My Project/Settings.Designer.vb	
+++ b/GUIs.ClipboardWatcher/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.4.0.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/GUIs.ClipboardWatcher/app.config b/GUIs.ClipboardWatcher/app.config
index c942cb81..f13a22ef 100644
--- a/GUIs.ClipboardWatcher/app.config
+++ b/GUIs.ClipboardWatcher/app.config
@@ -1,8 +1,8 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <configSections>
     <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System">
-      <section name="DevExpress.LookAndFeel.Design.AppSettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
+      <section name="DevExpress.LookAndFeel.Design.AppSettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false"/>
     </sectionGroup>
   </configSections>
   <applicationSettings>
@@ -41,20 +41,20 @@
         <value></value>
       </setting>
       <setting name="CustomPaletteCollection" serializeAs="Xml">
-        <value />
+        <value/>
       </setting>
     </DevExpress.LookAndFeel.Design.AppSettings>
   </applicationSettings>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
-        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0" />
+        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0"/>
       </dependentAssembly>
       <dependentAssembly>
-        <assemblyIdentity name="NLog" publicKeyToken="5120e14c03d0593c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
+        <assemblyIdentity name="NLog" publicKeyToken="5120e14c03d0593c" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-5.0.0.0" newVersion="5.0.0.0"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-</configuration>
\ No newline at end of file
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/></startup></configuration>
diff --git a/GUIs.Common/Common.vbproj b/GUIs.Common/Common.vbproj
index 0a152c12..f497b7f8 100644
--- a/GUIs.Common/Common.vbproj
+++ b/GUIs.Common/Common.vbproj
@@ -10,7 +10,7 @@
     <AssemblyName>DigitalData.GUIs.Common</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Windows</MyType>
-    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/GUIs.Common/app.config b/GUIs.Common/app.config
index 62c7d3c0..bf89aeae 100644
--- a/GUIs.Common/app.config
+++ b/GUIs.Common/app.config
@@ -53,4 +53,4 @@
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
-<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/></startup></configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/></startup></configuration>
diff --git a/GUIs.GlobalIndexer/GlobalIndexer.vbproj b/GUIs.GlobalIndexer/GlobalIndexer.vbproj
index 63012606..e9eaf094 100644
--- a/GUIs.GlobalIndexer/GlobalIndexer.vbproj
+++ b/GUIs.GlobalIndexer/GlobalIndexer.vbproj
@@ -10,8 +10,9 @@
     <AssemblyName>DigitalData.GUIs.GlobalIndexer</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Windows</MyType>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <Deterministic>true</Deterministic>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/GUIs.GlobalIndexer/My Project/Resources.Designer.vb b/GUIs.GlobalIndexer/My Project/Resources.Designer.vb
index 349910b1..d158d85e 100644
--- a/GUIs.GlobalIndexer/My Project/Resources.Designer.vb	
+++ b/GUIs.GlobalIndexer/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/GUIs.GlobalIndexer/My Project/Settings.Designer.vb b/GUIs.GlobalIndexer/My Project/Settings.Designer.vb
index d5a79e89..0cd6cd67 100644
--- a/GUIs.GlobalIndexer/My Project/Settings.Designer.vb	
+++ b/GUIs.GlobalIndexer/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.8.1.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/GUIs.Test.TestGUI/App.config b/GUIs.Test.TestGUI/App.config
index d0f7e844..6508e958 100644
--- a/GUIs.Test.TestGUI/App.config
+++ b/GUIs.Test.TestGUI/App.config
@@ -1,35 +1,35 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <configSections>
         <sectionGroup name="userSettings" type="System.Configuration.UserSettingsGroup, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
-            <section name="TestGUI.My.MySettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false" />
+            <section name="TestGUI.My.MySettings" type="System.Configuration.ClientSettingsSection, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" allowExeDefinition="MachineToLocalUser" requirePermission="false"/>
         </sectionGroup>
     </configSections>
     <startup>
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
     </startup>
     <userSettings>
         <TestGUI.My.MySettings>
             <setting name="WMFilepath" serializeAs="String">
-                <value />
+                <value/>
             </setting>
             <setting name="WMIndexName" serializeAs="String">
-                <value />
+                <value/>
             </setting>
             <setting name="WMSearch" serializeAs="String">
-                <value />
+                <value/>
             </setting>
         </TestGUI.My.MySettings>
     </userSettings>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
-        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-4.0.1.1" newVersion="4.0.1.1" />
+        <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-4.0.1.1" newVersion="4.0.1.1"/>
       </dependentAssembly>
       <dependentAssembly>
-        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral" />
-        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0" />
+        <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral"/>
+        <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0"/>
       </dependentAssembly>
     </assemblyBinding>
   </runtime>
diff --git a/GUIs.Test.TestGUI/My Project/Application.Designer.vb b/GUIs.Test.TestGUI/My Project/Application.Designer.vb
index ac66efcf..786811bc 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.frmStart
+            Me.MainForm = Global.TestGUI.Form1
         End Sub
     End Class
 End Namespace
diff --git a/GUIs.Test.TestGUI/My Project/Resources.Designer.vb b/GUIs.Test.TestGUI/My Project/Resources.Designer.vb
index cd2e2168..6d281b27 100644
--- a/GUIs.Test.TestGUI/My Project/Resources.Designer.vb	
+++ b/GUIs.Test.TestGUI/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "16.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/GUIs.Test.TestGUI/My Project/Settings.Designer.vb b/GUIs.Test.TestGUI/My Project/Settings.Designer.vb
index 2fc680a8..c4297d73 100644
--- a/GUIs.Test.TestGUI/My Project/Settings.Designer.vb	
+++ b/GUIs.Test.TestGUI/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.4.0.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/GUIs.Test.TestGUI/TestGUI.vbproj b/GUIs.Test.TestGUI/TestGUI.vbproj
index 66208b76..7d4d7892 100644
--- a/GUIs.Test.TestGUI/TestGUI.vbproj
+++ b/GUIs.Test.TestGUI/TestGUI.vbproj
@@ -11,7 +11,7 @@
     <AssemblyName>TestGUI</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>WindowsForms</MyType>
-    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/GUIs.Test.TestGUI/packages.config b/GUIs.Test.TestGUI/packages.config
index bf432ae4..fff7d72d 100644
--- a/GUIs.Test.TestGUI/packages.config
+++ b/GUIs.Test.TestGUI/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="Microsoft.Extensions.Logging.Abstractions" version="2.1.1" targetFramework="net461" />
   <package id="NLog" version="5.0.5" targetFramework="net472" />
-  <package id="Quartz" version="3.5.0" targetFramework="net472" />
+  <package id="Quartz" version="3.5.0" targetFramework="net472" requireReinstallation="true" />
   <package id="System.Buffers" version="4.5.1" targetFramework="net461" />
   <package id="System.Diagnostics.DiagnosticSource" version="4.7.1" targetFramework="net461" />
   <package id="System.Memory" version="4.5.4" targetFramework="net461" />
diff --git a/GUIs.Test.ZUGFeRDTest/App.config b/GUIs.Test.ZUGFeRDTest/App.config
index b9eee8df..f5e56d48 100644
--- a/GUIs.Test.ZUGFeRDTest/App.config
+++ b/GUIs.Test.ZUGFeRDTest/App.config
@@ -9,7 +9,7 @@
         </sectionGroup>
     </configSections>
     <startup>
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
     </startup>
     <applicationSettings>
         <ZUGFeRDTest.My.MySettings>
diff --git a/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj b/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
index e34fd32e..8853d80a 100644
--- a/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
+++ b/GUIs.Test.ZUGFeRDTest/ZUGFeRDTest.vbproj
@@ -11,7 +11,7 @@
     <AssemblyName>ZUGFeRDTest</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>WindowsForms</MyType>
-    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Services.EmailService/App.config b/Services.EmailService/App.config
index e773d4eb..c5280b07 100644
--- a/Services.EmailService/App.config
+++ b/Services.EmailService/App.config
@@ -3,7 +3,7 @@
     <configSections>
     </configSections>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
     </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
diff --git a/Services.EmailService/Config.vb b/Services.EmailService/Config.vb
index 9056a113..b1cd2d4a 100644
--- a/Services.EmailService/Config.vb
+++ b/Services.EmailService/Config.vb
@@ -17,5 +17,12 @@ Public Class Config
 
     Public Property Debug As Boolean = False
 
-    Public Property TlsVersion As Security.Authentication.SslProtocols = Security.Authentication.SslProtocols.Default
+    Public Class TlsConfig
+        Public Property EnableDefault As Boolean = True
+        Public Property EnableTls1_1 As Boolean = False
+        Public Property EnableTls1_2 As Boolean = False
+    End Class
+
+
+    Public Property TlsVersion As New TlsConfig
 End Class
diff --git a/Services.EmailService/DDEmailService.vbproj b/Services.EmailService/DDEmailService.vbproj
index 43eae557..0d4b5809 100644
--- a/Services.EmailService/DDEmailService.vbproj
+++ b/Services.EmailService/DDEmailService.vbproj
@@ -11,7 +11,7 @@
     <AssemblyName>DDEmailService</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Console</MyType>
-    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
   </PropertyGroup>
diff --git a/Services.EmailService/EmailService.vb b/Services.EmailService/EmailService.vb
index 97858f5e..0b2935b7 100644
--- a/Services.EmailService/EmailService.vb
+++ b/Services.EmailService/EmailService.vb
@@ -349,7 +349,9 @@ Public Class EmailService
                     ' ======= Connect to server =======
 
                     Dim oOptions As New MailSender.MailSenderOptions() With {
-                        .TlsVersion = _Config.TlsVersion
+                        .EnableTls1_1 = _Config.TlsVersion.EnableTls1_1,
+                        .EnableTls1_2 = _Config.TlsVersion.EnableTls1_2,
+                        .EnableDefault = _Config.TlsVersion.EnableDefault
                     }
 
                     Dim oResult = _MailSender.ConnectToServer(oAccount.Server, oAccount.Port, oAccount.Username, oAccount.Password, oAccount.AuthType, oOptions)
diff --git a/Services.LicenseService/App.config b/Services.LicenseService/App.config
index 06567b85..b3f62cde 100644
--- a/Services.LicenseService/App.config
+++ b/Services.LicenseService/App.config
@@ -1,14 +1,14 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <appSettings>
-      <add key="CONFIG_PATH" value="" />
+      <add key="CONFIG_PATH" value=""/>
     </appSettings>  
   <runtime>  
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">  
             <dependentAssembly>  
-                 <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral" />  
-                 <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0" />  
+                 <assemblyIdentity name="FirebirdSql.Data.FirebirdClient" publicKeyToken="3750abcc3150b00c" culture="neutral"/>  
+                 <bindingRedirect oldVersion="0.0.0.0-7.5.0.0" newVersion="7.5.0.0"/>  
             </dependentAssembly>  
        </assemblyBinding>  
   </runtime>
-</configuration>
+<startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/></startup></configuration>
diff --git a/Services.LicenseService/DDEDMLicenseService.vbproj b/Services.LicenseService/DDEDMLicenseService.vbproj
index cc26af94..82d9aee6 100644
--- a/Services.LicenseService/DDEDMLicenseService.vbproj
+++ b/Services.LicenseService/DDEDMLicenseService.vbproj
@@ -10,8 +10,9 @@
     <AssemblyName>DDEDMLicenseService</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Console</MyType>
-    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <WcfConfigValidationEnabled>True</WcfConfigValidationEnabled>
+    <TargetFrameworkProfile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/Services.LicenseService/My Project/Resources.Designer.vb b/Services.LicenseService/My Project/Resources.Designer.vb
index 82280de9..df891f89 100644
--- a/Services.LicenseService/My Project/Resources.Designer.vb	
+++ b/Services.LicenseService/My Project/Resources.Designer.vb	
@@ -22,7 +22,7 @@ Namespace My.Resources
     '''<summary>
     '''  Eine stark typisierte Ressourcenklasse zum Suchen von lokalisierten Zeichenfolgen usw.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "15.0.0.0"),  _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0"),  _
      Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
      Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
      Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
diff --git a/Services.LicenseService/My Project/Settings.Designer.vb b/Services.LicenseService/My Project/Settings.Designer.vb
index 2bbfdbc1..81d5952e 100644
--- a/Services.LicenseService/My Project/Settings.Designer.vb	
+++ b/Services.LicenseService/My Project/Settings.Designer.vb	
@@ -15,7 +15,7 @@ Option Explicit On
 Namespace My
     
     <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "15.7.0.0"),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "17.4.0.0"),  _
      Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
diff --git a/Services.ZUGFeRDService/App.config b/Services.ZUGFeRDService/App.config
index e773d4eb..c5280b07 100644
--- a/Services.ZUGFeRDService/App.config
+++ b/Services.ZUGFeRDService/App.config
@@ -3,7 +3,7 @@
     <configSections>
     </configSections>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.2"/>
     </startup>
   <runtime>
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
diff --git a/Services.ZUGFeRDService/DDZUGFeRDService.vbproj b/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
index da87b4e4..d8b84fbe 100644
--- a/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
+++ b/Services.ZUGFeRDService/DDZUGFeRDService.vbproj
@@ -11,7 +11,7 @@
     <AssemblyName>DDZUGFeRDService</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>Console</MyType>
-    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <TargetFrameworkProfile />
   </PropertyGroup>