diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/BaseViewModel.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/BaseViewModel.cs
similarity index 100%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/BaseViewModel.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/BaseViewModel.cs
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/BaseCommand.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/BaseCommand.cs
similarity index 100%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/BaseCommand.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/BaseCommand.cs
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/RelayCommand.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/RelayCommand.cs
similarity index 100%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/RelayCommand.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/RelayCommand.cs
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs
similarity index 87%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs
index 462a348..7a182c7 100644
--- a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs
+++ b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskBaseCommand.cs
@@ -2,14 +2,13 @@
 using EasyMicroservices.UI.Cores.Interfaces;
 using System;
 using System.Threading.Tasks;
-using System.Windows.Input;
 
 namespace EasyMicroservices.UI.Cores.Commands
 {
     /// <summary>
     /// 
     /// </summary>
-    public class TaskBaseCommand : ICommand
+    public class TaskBaseCommand : ICommandAsync
     {
         /// <summary>
         /// 
@@ -76,11 +75,7 @@ public virtual bool CanExecute(object parameter = null)
         /// <param name="parameter"></param>
         public virtual void Execute(object parameter)
         {
-            if (_busyViewModel != null)
-            {
-                _busyViewModel.Busy();
-                CanExecuteChanged?.Invoke(this, new EventArgs());
-            }
+            InternalExecuteInit();
             _ = InternalExecute(parameter);
         }
 
@@ -107,5 +102,25 @@ async Task InternalExecute(object parameter)
                 }
             }
         }
+
+        void InternalExecuteInit()
+        {
+            if (_busyViewModel != null)
+            {
+                _busyViewModel.Busy();
+                CanExecuteChanged?.Invoke(this, new EventArgs());
+            }
+        }
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="parameter"></param>
+        /// <returns></returns>
+        public async Task ExecuteAsync(object parameter)
+        {
+            InternalExecuteInit();
+            await InternalExecute(parameter);
+        }
     }
 }
\ No newline at end of file
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskRelayCommand.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskRelayCommand.cs
similarity index 100%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskRelayCommand.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Commands/TaskRelayCommand.cs
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj
similarity index 94%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj
index c18e972..56ebbef 100644
--- a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj
+++ b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/EasyMicroservices.UI.Cores.Mvvm.csproj
@@ -5,7 +5,7 @@
     <Platforms>AnyCPU;x64;x86</Platforms>
     <Authors>EasyMicroservices</Authors>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <Version>0.0.0.6</Version>
+    <Version>0.0.0.7</Version>
     <Description>Model View View Model</Description>
     <Copyright>EasyMicroservices@gmail.com</Copyright>
     <PackageTags>mvvm,mvpvm,modelview,modelviewviewmodel</PackageTags>
@@ -17,7 +17,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="EasyMicroservices.ServiceContracts" Version="0.0.0.18" />
+    <PackageReference Include="EasyMicroservices.ServiceContracts" Version="0.0.0.19" />
   </ItemGroup>
 
 </Project>
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Interfaces/IBusyViewModel.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Interfaces/IBusyViewModel.cs
similarity index 100%
rename from src/CSharp/EasyMicroservices.UI.Cores.Mvvm/Interfaces/IBusyViewModel.cs
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Interfaces/IBusyViewModel.cs
diff --git a/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Interfaces/ICommandAsync.cs b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Interfaces/ICommandAsync.cs
new file mode 100644
index 0000000..206aa6d
--- /dev/null
+++ b/src/CSharp/Cores/EasyMicroservices.UI.Cores.Mvvm/Interfaces/ICommandAsync.cs
@@ -0,0 +1,18 @@
+using System.Threading.Tasks;
+using System.Windows.Input;
+
+namespace EasyMicroservices.UI.Cores.Interfaces
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public interface ICommandAsync : ICommand
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="parameter"></param>
+        /// <returns></returns>
+        Task ExecuteAsync(object parameter);
+    }
+}
diff --git a/src/CSharp/EasyMicroservices.UI.Cores.sln b/src/CSharp/Cores/EasyMicroservices.UI.Cores.sln
similarity index 53%
rename from src/CSharp/EasyMicroservices.UI.Cores.sln
rename to src/CSharp/Cores/EasyMicroservices.UI.Cores.sln
index 4fe1f2e..840be97 100644
--- a/src/CSharp/EasyMicroservices.UI.Cores.sln
+++ b/src/CSharp/Cores/EasyMicroservices.UI.Cores.sln
@@ -5,24 +5,38 @@ VisualStudioVersion = 17.7.34018.315
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EasyMicroservices.UI.Cores.Mvvm", "EasyMicroservices.UI.Cores.Mvvm\EasyMicroservices.UI.Cores.Mvvm.csproj", "{301DB27A-4A96-4891-89BA-15FF9D6091B5}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "App", "App", "{0B34338E-D1A6-44EC-94AE-3D7A305E77E7}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "BusinessLogic-Layer", "BusinessLogic-Layer", "{0042F7CD-62D1-4CCE-9BCC-1C7793C844EC}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "UserInterface-Layer", "UserInterface-Layer", "{27B243BB-7AEF-43B1-8C5D-55698CFEBC3A}"
 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
 		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|x64.ActiveCfg = Debug|x64
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|x64.Build.0 = Debug|x64
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|x86.ActiveCfg = Debug|x86
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Debug|x86.Build.0 = Debug|x86
 		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|x64.ActiveCfg = Release|x64
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|x64.Build.0 = Release|x64
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|x86.ActiveCfg = Release|x86
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5}.Release|x86.Build.0 = Release|x86
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
-		{301DB27A-4A96-4891-89BA-15FF9D6091B5} = {0B34338E-D1A6-44EC-94AE-3D7A305E77E7}
+		{301DB27A-4A96-4891-89BA-15FF9D6091B5} = {0042F7CD-62D1-4CCE-9BCC-1C7793C844EC}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {77EBEEBB-EB05-4329-BA01-C8E0B8EA5A08}