diff --git a/PolyTraderSharp.csproj b/PolyTrader.App.csproj
similarity index 76%
rename from PolyTraderSharp.csproj
rename to PolyTrader.App.csproj
index 9b160de..439d0f5 100644
--- a/PolyTraderSharp.csproj
+++ b/PolyTrader.App.csproj
@@ -7,6 +7,10 @@
     <ApplicationIcon>favicon.ico</ApplicationIcon>
     <OutputType>WinExe</OutputType>
     <UseWindowsForms>true</UseWindowsForms>
+    <!-- Assembly heißt jetzt PolyTrader.App; RootNamespace bleibt PolyTraderSharp,
+         damit die bestehenden Namespaces und die .resx-Ressourcenauflösung intakt bleiben. -->
+    <AssemblyName>PolyTrader.App</AssemblyName>
+    <RootNamespace>PolyTraderSharp</RootNamespace>
   </PropertyGroup>
 
   <ItemGroup>
@@ -14,6 +18,10 @@
     <None Remove="agentspace\**" />
     <Compile Remove="libs\**" />
     <None Remove="libs\**" />
+    <!-- Neue Modul-/Core-Projekte liegen unter src/ und werden separat kompiliert. -->
+    <Compile Remove="src\**" />
+    <None Remove="src\**" />
+    <EmbeddedResource Remove="src\**" />
   </ItemGroup>
 
   <ItemGroup>
@@ -62,6 +70,8 @@
 
   <ItemGroup>
     <ProjectReference Include="libs\Threema-MsgApi-Net-Core\IcgSoftware.Threema.CoreMsgApi\IcgSoftware.Threema.CoreMsgApi.csproj" />
+    <ProjectReference Include="src\PolyTrader.Core\PolyTrader.Core.csproj" />
+    <ProjectReference Include="src\PolyTrader.Modules.CopyTrading\PolyTrader.Modules.CopyTrading.csproj" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/PolyTraderSharp.sln b/PolyTraderSharp.sln
index 02b1899..7f53f2e 100644
--- a/PolyTraderSharp.sln
+++ b/PolyTraderSharp.sln
@@ -1,24 +1,90 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
-VisualStudioVersion = 17.14.36915.13 d17.14
+VisualStudioVersion = 17.14.36915.13
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolyTraderSharp", "PolyTraderSharp.csproj", "{7FB00BC0-D295-4A77-A53F-8E414FB0FD20}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolyTrader.App", "PolyTrader.App.csproj", "{8B91AC5C-8A7C-47BF-B651-6CF3B60FEC84}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "libs", "libs", "{6C4D298B-81FB-2B6B-5AB6-46205EDDC72C}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Threema-MsgApi-Net-Core", "Threema-MsgApi-Net-Core", "{35072DD7-6FE3-A86A-51D9-DD886E81202C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "IcgSoftware.Threema.CoreMsgApi", "libs\Threema-MsgApi-Net-Core\IcgSoftware.Threema.CoreMsgApi\IcgSoftware.Threema.CoreMsgApi.csproj", "{EFAE2853-E52F-4163-8266-3859C7748B85}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolyTrader.Core", "src\PolyTrader.Core\PolyTrader.Core.csproj", "{3502A702-FA60-456E-BF23-05EAD02465E6}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolyTrader.Modules.CopyTrading", "src\PolyTrader.Modules.CopyTrading\PolyTrader.Modules.CopyTrading.csproj", "{FA3FC57B-EA9D-4703-B643-2874C8C0461E}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
 		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
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+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Debug|x64.Build.0 = Debug|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Debug|x86.Build.0 = Debug|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|x64.ActiveCfg = Release|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|x64.Build.0 = Release|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|x86.ActiveCfg = Release|Any CPU
+		{EFAE2853-E52F-4163-8266-3859C7748B85}.Release|x86.Build.0 = Release|Any CPU
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+		{3502A702-FA60-456E-BF23-05EAD02465E6}.Debug|x86.Build.0 = Debug|Any CPU
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+		{3502A702-FA60-456E-BF23-05EAD02465E6}.Release|x64.Build.0 = Release|Any CPU
+		{3502A702-FA60-456E-BF23-05EAD02465E6}.Release|x86.ActiveCfg = Release|Any CPU
+		{3502A702-FA60-456E-BF23-05EAD02465E6}.Release|x86.Build.0 = Release|Any CPU
+		{FA3FC57B-EA9D-4703-B643-2874C8C0461E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FA3FC57B-EA9D-4703-B643-2874C8C0461E}.Debug|Any CPU.Build.0 = Debug|Any CPU
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+		{FA3FC57B-EA9D-4703-B643-2874C8C0461E}.Release|x86.ActiveCfg = Release|Any CPU
+		{FA3FC57B-EA9D-4703-B643-2874C8C0461E}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{35072DD7-6FE3-A86A-51D9-DD886E81202C} = {6C4D298B-81FB-2B6B-5AB6-46205EDDC72C}
+		{EFAE2853-E52F-4163-8266-3859C7748B85} = {35072DD7-6FE3-A86A-51D9-DD886E81202C}
+		{3502A702-FA60-456E-BF23-05EAD02465E6} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+		{FA3FC57B-EA9D-4703-B643-2874C8C0461E} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B}
+	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {60AA6BCF-B17E-4D52-A290-14154A3E97CF}
 	EndGlobalSection
diff --git a/src/PolyTrader.Core/PolyTrader.Core.csproj b/src/PolyTrader.Core/PolyTrader.Core.csproj
new file mode 100644
index 0000000..371d001
--- /dev/null
+++ b/src/PolyTrader.Core/PolyTrader.Core.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/src/PolyTrader.Modules.CopyTrading/PolyTrader.Modules.CopyTrading.csproj b/src/PolyTrader.Modules.CopyTrading/PolyTrader.Modules.CopyTrading.csproj
new file mode 100644
index 0000000..fa9046a
--- /dev/null
+++ b/src/PolyTrader.Modules.CopyTrading/PolyTrader.Modules.CopyTrading.csproj
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\PolyTrader.Core\PolyTrader.Core.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <!-- Modul trägt später eigene WinForms-UI-Tabs bei. -->
+    <UseWindowsForms>true</UseWindowsForms>
+  </PropertyGroup>
+
+</Project>