diff --git a/ConsoleAppLock/ConsoleAppLock.sln b/ConsoleAppLock/ConsoleAppLock.sln
new file mode 100644
index 0000000..cdafe8b
--- /dev/null
+++ b/ConsoleAppLock/ConsoleAppLock.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28803.352
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleAppLock", "ConsoleAppLock\ConsoleAppLock.csproj", "{8158707F-D9AB-4C38-B2C1-9F875777EE28}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8158707F-D9AB-4C38-B2C1-9F875777EE28}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8158707F-D9AB-4C38-B2C1-9F875777EE28}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8158707F-D9AB-4C38-B2C1-9F875777EE28}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8158707F-D9AB-4C38-B2C1-9F875777EE28}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C518F8F8-7AC7-4BF7-A039-474F93FA7CED}
+	EndGlobalSection
+EndGlobal
diff --git a/ConsoleAppLock/ConsoleAppLock/App.config b/ConsoleAppLock/ConsoleAppLock/App.config
new file mode 100644
index 0000000..56efbc7
--- /dev/null
+++ b/ConsoleAppLock/ConsoleAppLock/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/ConsoleAppLock/ConsoleAppLock/ConsoleAppLock.csproj b/ConsoleAppLock/ConsoleAppLock/ConsoleAppLock.csproj
new file mode 100644
index 0000000..e67124a
--- /dev/null
+++ b/ConsoleAppLock/ConsoleAppLock/ConsoleAppLock.csproj
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{8158707F-D9AB-4C38-B2C1-9F875777EE28}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>ConsoleAppLock</RootNamespace>
+    <AssemblyName>ConsoleAppLock</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/ConsoleAppLock/ConsoleAppLock/Program.cs b/ConsoleAppLock/ConsoleAppLock/Program.cs
new file mode 100644
index 0000000..dd02b49
--- /dev/null
+++ b/ConsoleAppLock/ConsoleAppLock/Program.cs
@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConsoleAppLock
+{
+    class Program
+    {
+        private static List<int> intlist;
+        private static object lockobject;
+
+        static void Main(string[] args)
+        {
+            intlist = new List<int>();
+            lockobject = new object();
+
+            containsNumber(5);
+            addNumber(8);
+
+            Console.Read();
+        }
+
+        static void containsNumber(int i)
+        {
+            if (!intlist.Contains(i))
+            {
+                intlist.Add(i);
+            }
+        }
+
+        static void addNumber(int i)
+        {
+            intlist.Add(i);
+        }
+    }
+}
\ No newline at end of file
diff --git a/ConsoleAppLock/ConsoleAppLock/Properties/AssemblyInfo.cs b/ConsoleAppLock/ConsoleAppLock/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..dbfc9e5
--- /dev/null
+++ b/ConsoleAppLock/ConsoleAppLock/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("ConsoleAppLock")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Microsoft")]
+[assembly: AssemblyProduct("ConsoleAppLock")]
+[assembly: AssemblyCopyright("Copyright © Microsoft 2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("8158707f-d9ab-4c38-b2c1-9f875777ee28")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]