diff --git a/FullscreenLock.sln b/FullscreenLock.sln
index 21d6ed3..168c187 100644
--- a/FullscreenLock.sln
+++ b/FullscreenLock.sln
@@ -12,14 +12,14 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
+		Debug|x64 = Debug|x64
+		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Debug|x64.ActiveCfg = Debug|x64
+		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Debug|x64.Build.0 = Debug|x64
+		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Release|x64.ActiveCfg = Release|x64
+		{7A92E5B0-CFAF-4182-B4EE-48C5F0E66CB8}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/FullscreenLock/App.config b/FullscreenLock/App.config
index 88fa402..4bfa005 100644
--- a/FullscreenLock/App.config
+++ b/FullscreenLock/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8"/>
     </startup>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/FullscreenLock/Checker.cs b/FullscreenLock/Checker.cs
index 10926ad..82ec922 100644
--- a/FullscreenLock/Checker.cs
+++ b/FullscreenLock/Checker.cs
@@ -1,108 +1,126 @@
-using System;
-using System.Runtime.InteropServices;
-using System.Windows.Forms;
-using System.Drawing;
-using System.Diagnostics;
-
-namespace FullscreenLock
-{
-    class Checker
-    {
-        readonly Timer t = new Timer();
-        bool ForegroundFullscreenState = false;
-        public event EventHandler<BoolEventArgs> ActiveStateChanged;
-        public event EventHandler<BoolEventArgs> ForegroundFullscreenStateChanged;
-
-        // Import a bunch of win32 API calls.
-        [DllImport("user32.dll")]
-        private static extern IntPtr GetForegroundWindow();
-        [DllImport("user32.dll", SetLastError = true)]
-        public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
-        [DllImport("user32.dll", SetLastError = true)]
-        private static extern int GetWindowRect(IntPtr hwnd, out RECT rc);
-        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
-        public static extern bool ClipCursor(ref RECT rcClip);
-        [DllImport("user32.dll")]
-        private static extern IntPtr GetDesktopWindow();
-        [DllImport("user32.dll")]
-        private static extern IntPtr GetShellWindow();
-
-        public Checker()
-        {
-            t.Tick += new EventHandler(CheckForFullscreenApps);
-            t.Interval = 100;
-            t.Start();
-        }
-
-        public void ActiveStateToggled(object sender, EventArgs e)
-        {
-            if (t.Enabled)
-            {
-                t.Stop();
-            }
-            else
-            {
-                t.Start();
-            }
-
-            ActiveStateChanged?.Invoke(this, new BoolEventArgs(t.Enabled));
-        }
-
-        private void CheckForFullscreenApps(object sender, EventArgs e)
-        {
-            bool NewFullscreenState = IsForegroundFullScreen();
-
-            //If the fullscreen state changed, set the new state and emit the change event
-            if (ForegroundFullscreenState != NewFullscreenState)
-            {
-                ForegroundFullscreenState = NewFullscreenState;
-                ForegroundFullscreenStateChanged?.Invoke(this, new BoolEventArgs(NewFullscreenState));
-            }
-        }
-
-        public static bool IsForegroundFullScreen()
-        {
-            //Get the handles for the desktop and shell now.
-            IntPtr desktopHandle = GetDesktopWindow();
-            IntPtr shellHandle = GetShellWindow();
-            Rectangle screenBounds;
-            IntPtr hWnd;
-
-            hWnd = GetForegroundWindow();
-            if (hWnd != null && !hWnd.Equals(IntPtr.Zero))
-            {
-                //Check we haven't picked up the desktop or the shell
-                if (!(hWnd.Equals(desktopHandle) || hWnd.Equals(shellHandle)))
-                {
-                    GetWindowRect(hWnd, out RECT appBounds);
-                    //determine if window is fullscreen
-                    screenBounds = Screen.FromHandle(hWnd).Bounds;
-                    GetWindowThreadProcessId(hWnd, out uint procid);
-                    var proc = Process.GetProcessById((int)procid);
-                    if ((appBounds.Bottom - appBounds.Top) == screenBounds.Height && (appBounds.Right - appBounds.Left) == screenBounds.Width)
-                    {
-                        Console.WriteLine(proc.ProcessName);
-                        Cursor.Clip = screenBounds;
-                        return true;
-                    }
-                    else
-                    {
-                        Cursor.Clip = Rectangle.Empty;
-                        return false;
-                    }
-                }
-            }
-            return false;
-        }
-    }
-
-    public class BoolEventArgs : EventArgs
-    {
-        public bool Bool { get; set; }
-
+using System;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+using System.Drawing;
+using System.Diagnostics;
+
+namespace FullscreenLock
+{
+    class Checker
+    {
+        readonly Timer t = new Timer();
+        bool ForegroundFullscreenState = false;
+        public event EventHandler<BoolEventArgs> ActiveStateChanged;
+        public event EventHandler<BoolEventArgs> ForegroundFullscreenStateChanged;
+
+        // Import a bunch of win32 API calls.
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetForegroundWindow();
+        [DllImport("user32.dll", SetLastError = true)]
+        public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
+        [DllImport("user32.dll", SetLastError = true)]
+        private static extern int GetWindowRect(IntPtr hwnd, out RECT rc);
+        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
+        public static extern bool ClipCursor(ref RECT rcClip);
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetDesktopWindow();
+        [DllImport("user32.dll")]
+        private static extern IntPtr GetShellWindow();
+
+        public Checker()
+        {
+            t.Tick += new EventHandler(CheckForFullscreenApps);
+            t.Interval = 100;
+            t.Start();
+        }
+
+        public void ActiveStateToggled(object sender, EventArgs e)
+        {
+            if (t.Enabled)
+            {
+                t.Stop();
+            }
+            else
+            {
+                t.Start();
+            }
+
+            ActiveStateChanged?.Invoke(this, new BoolEventArgs(t.Enabled));
+        }
+
+        private void CheckForFullscreenApps(object sender, EventArgs e)
+        {
+            bool NewFullscreenState = IsForegroundFullScreen();
+
+            //If the fullscreen state changed, set the new state and emit the change event
+            if (ForegroundFullscreenState != NewFullscreenState)
+            {
+                ForegroundFullscreenState = NewFullscreenState;
+                ForegroundFullscreenStateChanged?.Invoke(this, new BoolEventArgs(NewFullscreenState));
+            }
+        }
+
+        public static bool IsForegroundFullScreen()
+        {
+            //Get the handles for the desktop and shell now.
+            IntPtr desktopHandle = GetDesktopWindow();
+            IntPtr shellHandle = GetShellWindow();
+            Rectangle screenBounds;
+            IntPtr hWnd;
+
+            hWnd = GetForegroundWindow();
+            if (hWnd != null && !hWnd.Equals(IntPtr.Zero))
+            {
+                //Check we haven't picked up the desktop or the shell
+                if (!(hWnd.Equals(desktopHandle) || hWnd.Equals(shellHandle)))
+                {
+                    GetWindowRect(hWnd, out RECT appBounds);
+                    //determine if window is fullscreen
+                    screenBounds = Screen.FromHandle(hWnd).Bounds;
+
+                    //determine process, to check the whitelist
+                    Process proc = null;
+                    try
+                    {
+                        GetWindowThreadProcessId(hWnd, out uint procid);
+                        proc = Process.GetProcessById((int)procid);
+                    }
+                    catch (Exception) { }
+
+                    if (proc != null)
+                    {
+                        if ((appBounds.Bottom - appBounds.Top) == screenBounds.Height && (appBounds.Right - appBounds.Left) == screenBounds.Width
+                            && !IsWhitelisted(proc.MainModule.FileName))
+                        {
+                            Console.WriteLine(proc.ProcessName);
+                            Cursor.Clip = screenBounds;
+                            return true;
+                        }
+                        else
+                        {
+                            Cursor.Clip = Rectangle.Empty;
+                            return false;
+                        }
+                    }
+                }
+            }
+            return false;
+        }
+
+        public static bool IsWhitelisted(string sFullPathToProgram)
+        {
+            return Program.Settings_File.Instance.asWhitelist.ConvertAll(s => s.ToLower()).Contains(sFullPathToProgram.ToLower());
+        }
+    }
+
+    public class BoolEventArgs : EventArgs
+    {
+        public bool Bool { get; set; }
+
         public BoolEventArgs(bool b)
         {
             Bool = b;
-        }
-    }
-}
+        }
+    }
+}
diff --git a/FullscreenLock/FullscreenLock.Designer.cs b/FullscreenLock/FullscreenLock.Designer.cs
index 4a8586f..55c0a9e 100644
--- a/FullscreenLock/FullscreenLock.Designer.cs
+++ b/FullscreenLock/FullscreenLock.Designer.cs
@@ -34,6 +34,7 @@ private void InitializeComponent()
             this.ToggleButton = new System.Windows.Forms.Button();
             this.StatusLabel = new System.Windows.Forms.Label();
             this.MadeByLabel = new System.Windows.Forms.Label();
+            this.buttonSettings = new System.Windows.Forms.Button();
             this.SuspendLayout();
             // 
             // ToggleButton
@@ -69,6 +70,18 @@ private void InitializeComponent()
             this.MadeByLabel.Text = "✨ Made by Blåberry and the community ✨";
             this.MadeByLabel.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
             // 
+            // buttonSettings
+            // 
+            this.buttonSettings.Cursor = System.Windows.Forms.Cursors.Default;
+            this.buttonSettings.Font = new System.Drawing.Font("Segoe MDL2 Assets", 11.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.buttonSettings.Location = new System.Drawing.Point(186, 12);
+            this.buttonSettings.Name = "buttonSettings";
+            this.buttonSettings.Size = new System.Drawing.Size(30, 30);
+            this.buttonSettings.TabIndex = 3;
+            this.buttonSettings.Text = "";
+            this.buttonSettings.UseVisualStyleBackColor = true;
+            this.buttonSettings.Click += new System.EventHandler(this.buttonSettings_Click);
+            // 
             // FullscreenLock
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 13F);
@@ -76,6 +89,7 @@ private void InitializeComponent()
             this.AutoSize = true;
             this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
             this.ClientSize = new System.Drawing.Size(229, 141);
+            this.Controls.Add(this.buttonSettings);
             this.Controls.Add(this.ToggleButton);
             this.Controls.Add(this.MadeByLabel);
             this.Controls.Add(this.StatusLabel);
@@ -99,6 +113,7 @@ private void InitializeComponent()
 
         private System.Windows.Forms.Button ToggleButton;
         public System.Windows.Forms.Label StatusLabel;
-        private System.Windows.Forms.Label MadeByLabel;
+        private System.Windows.Forms.Label MadeByLabel;
+        private Button buttonSettings;
     }
 }
diff --git a/FullscreenLock/FullscreenLock.cs b/FullscreenLock/FullscreenLock.cs
index f2a16b3..8728a90 100644
--- a/FullscreenLock/FullscreenLock.cs
+++ b/FullscreenLock/FullscreenLock.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Windows.Forms;
+using static FullscreenLock.Settings;
 
 namespace FullscreenLock
 {
@@ -7,6 +8,7 @@ public partial class FullscreenLock : Form
     {
         public event EventHandler ActiveStateToggled;
 
+
         public FullscreenLock()
         {
             InitializeComponent();
@@ -48,5 +50,11 @@ public void ForegroundFullscreenStateChanged(object sender, BoolEventArgs e)
         {
             StatusLabel.Text = e.Bool ? "Fullscreen app in focus" : "Waiting for focus";
         }
+
+        private void buttonSettings_Click(object sender, EventArgs e)
+        {
+            Settings settings = new Settings(this);
+            settings.Show();
+        }
     }
 }
diff --git a/FullscreenLock/FullscreenLock.csproj b/FullscreenLock/FullscreenLock.csproj
index a5298c1..5f55c7b 100644
--- a/FullscreenLock/FullscreenLock.csproj
+++ b/FullscreenLock/FullscreenLock.csproj
@@ -9,9 +9,11 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>FullscreenLock</RootNamespace>
     <AssemblyName>FullscreenLock</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <IsWebBootstrapper>false</IsWebBootstrapper>
+    <TargetFrameworkProfile />
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -24,12 +26,11 @@
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
     <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
-    <IsWebBootstrapper>false</IsWebBootstrapper>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>AnyCPU</PlatformTarget>
+    <PlatformTarget>x64</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
@@ -51,6 +52,28 @@
   <PropertyGroup>
     <ApplicationIcon>gaben.ico</ApplicationIcon>
   </PropertyGroup>
+  <PropertyGroup>
+    <StartupObject>FullscreenLock.Program</StartupObject>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <LangVersion>7.3</LangVersion>
+    <ErrorReport>prompt</ErrorReport>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <LangVersion>7.3</LangVersion>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -79,6 +102,12 @@
     </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Settings.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Settings.Designer.cs">
+      <DependentUpon>Settings.cs</DependentUpon>
+    </Compile>
     <EmbeddedResource Include="FullscreenLock.resx">
       <DependentUpon>FullscreenLock.cs</DependentUpon>
     </EmbeddedResource>
@@ -92,6 +121,9 @@
       <DependentUpon>Resources.resx</DependentUpon>
       <DesignTime>True</DesignTime>
     </Compile>
+    <EmbeddedResource Include="Settings.resx">
+      <DependentUpon>Settings.cs</DependentUpon>
+    </EmbeddedResource>
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
diff --git a/FullscreenLock/Program.cs b/FullscreenLock/Program.cs
index 8657536..200db06 100644
--- a/FullscreenLock/Program.cs
+++ b/FullscreenLock/Program.cs
@@ -3,11 +3,14 @@
 using System.Linq;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using static FullscreenLock.Settings;
 
 namespace FullscreenLock
-{
+{ 
     static class Program
     {
+        public static SettingsFile Settings_File { get; set; } = new SettingsFile();
+
         /// <summary>
         /// The main entry point for the application.
         /// </summary>
diff --git a/FullscreenLock/Properties/AssemblyInfo.cs b/FullscreenLock/Properties/AssemblyInfo.cs
index 0be4513..2e43f91 100644
--- a/FullscreenLock/Properties/AssemblyInfo.cs
+++ b/FullscreenLock/Properties/AssemblyInfo.cs
@@ -1,4 +1,4 @@
-using System.Reflection;
+using System.Reflection;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
@@ -10,7 +10,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("FullscreenLock")]
-[assembly: AssemblyCopyright("Copyright ©  2018")]
+[assembly: AssemblyCopyright("Copyright ©  2023")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -32,5 +32,5 @@
 // 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")]
+[assembly: AssemblyVersion("1.3.0.0")]
+[assembly: AssemblyFileVersion("1.3.0.0")]
diff --git a/FullscreenLock/Properties/Settings.Designer.cs b/FullscreenLock/Properties/Settings.Designer.cs
index df672ee..37b9090 100644
--- a/FullscreenLock/Properties/Settings.Designer.cs
+++ b/FullscreenLock/Properties/Settings.Designer.cs
@@ -12,7 +12,7 @@ namespace FullscreenLock.Properties {
     
     
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.10.0.0")]
     internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
         
         private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
diff --git a/FullscreenLock/Settings.Designer.cs b/FullscreenLock/Settings.Designer.cs
new file mode 100644
index 0000000..552341d
--- /dev/null
+++ b/FullscreenLock/Settings.Designer.cs
@@ -0,0 +1,112 @@
+namespace FullscreenLock
+{
+    partial class Settings
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.tabControlMain = new System.Windows.Forms.TabControl();
+            this.tabPageWhitelist = new System.Windows.Forms.TabPage();
+            this.dataGridViewWhitelist = new System.Windows.Forms.DataGridView();
+            this.ColProgram = new System.Windows.Forms.DataGridViewTextBoxColumn();
+            this.tabControlMain.SuspendLayout();
+            this.tabPageWhitelist.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridViewWhitelist)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // tabControlMain
+            // 
+            this.tabControlMain.Controls.Add(this.tabPageWhitelist);
+            this.tabControlMain.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.tabControlMain.Location = new System.Drawing.Point(0, 0);
+            this.tabControlMain.Name = "tabControlMain";
+            this.tabControlMain.SelectedIndex = 0;
+            this.tabControlMain.Size = new System.Drawing.Size(639, 450);
+            this.tabControlMain.TabIndex = 0;
+            // 
+            // tabPageWhitelist
+            // 
+            this.tabPageWhitelist.Controls.Add(this.dataGridViewWhitelist);
+            this.tabPageWhitelist.Location = new System.Drawing.Point(4, 22);
+            this.tabPageWhitelist.Name = "tabPageWhitelist";
+            this.tabPageWhitelist.Padding = new System.Windows.Forms.Padding(3);
+            this.tabPageWhitelist.Size = new System.Drawing.Size(631, 424);
+            this.tabPageWhitelist.TabIndex = 1;
+            this.tabPageWhitelist.Text = "Whitelist";
+            this.tabPageWhitelist.UseVisualStyleBackColor = true;
+            // 
+            // dataGridViewWhitelist
+            // 
+            this.dataGridViewWhitelist.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridViewWhitelist.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] {
+            this.ColProgram});
+            this.dataGridViewWhitelist.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.dataGridViewWhitelist.Location = new System.Drawing.Point(3, 3);
+            this.dataGridViewWhitelist.Name = "dataGridViewWhitelist";
+            this.dataGridViewWhitelist.Size = new System.Drawing.Size(625, 418);
+            this.dataGridViewWhitelist.TabIndex = 0;
+            // 
+            // ColProgram
+            // 
+            this.ColProgram.HeaderText = "Full path to the whitelisted program";
+            this.ColProgram.Name = "Program";
+            this.ColProgram.Resizable = System.Windows.Forms.DataGridViewTriState.False;
+            this.ColProgram.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
+            this.ColProgram.ToolTipText = "like \'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe\'";
+            this.ColProgram.Width = 550;
+            // 
+            // Settings
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.AutoSize = true;
+            this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
+            this.ClientSize = new System.Drawing.Size(639, 450);
+            this.Controls.Add(this.tabControlMain);
+            this.MaximizeBox = false;
+            this.MaximumSize = new System.Drawing.Size(655, 489);
+            this.MinimizeBox = false;
+            this.MinimumSize = new System.Drawing.Size(655, 489);
+            this.Name = "Settings";
+            this.ShowIcon = false;
+            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
+            this.Text = "Settings";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Settings_FormClosing);
+            this.tabControlMain.ResumeLayout(false);
+            this.tabPageWhitelist.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridViewWhitelist)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.TabControl tabControlMain;
+        private System.Windows.Forms.TabPage tabPageWhitelist;
+        private System.Windows.Forms.DataGridView dataGridViewWhitelist;
+        private System.Windows.Forms.DataGridViewTextBoxColumn ColProgram;
+    }
+}
\ No newline at end of file
diff --git a/FullscreenLock/Settings.cs b/FullscreenLock/Settings.cs
new file mode 100644
index 0000000..23ea205
--- /dev/null
+++ b/FullscreenLock/Settings.cs
@@ -0,0 +1,124 @@
+using System.Collections.Generic;
+using System.Windows.Forms;
+using System.Xml.Serialization;
+using System.IO;
+using System;
+
+namespace FullscreenLock
+{
+    public partial class Settings : Form
+    {
+        public Settings(FullscreenLock mainForm)
+        {
+            InitializeComponent();
+
+            #region Whitelist
+            InitWhiteListDataGrid();
+            #endregion
+
+        }
+
+        private void Settings_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            // Save all
+            #region Whitelist
+            Program.Settings_File.Instance.asWhitelist.Clear();
+            foreach (DataGridViewRow row in dataGridViewWhitelist.Rows)
+            {
+                object oValue = row.Cells[0].Value;
+                if (oValue != null)
+                    Program.Settings_File.Instance.asWhitelist.Add(oValue.ToString());
+            }
+            #endregion
+
+            Program.Settings_File.SaveLocal();
+        }
+
+        #region Whitelist methods
+        public void InitWhiteListDataGrid()
+        {
+            foreach (string sProgramName in Program.Settings_File.Instance.asWhitelist)
+                dataGridViewWhitelist.Rows.Add(sProgramName);
+        }
+        #endregion
+
+
+        public class SettingsFile
+        {
+            public string LocalFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "FullScreenLock.xml");
+            
+            private SettingsContent _settings = null;
+            public SettingsContent Instance 
+            {
+                get {
+                    if (_settings == null)
+                        _settings = new SettingsContent();
+
+                    return _settings;
+                }
+
+                private set { _settings = value; }
+            }
+
+
+
+            public SettingsFile()
+            {
+                LoadLocal();
+            }
+
+            public bool LoadLocal()
+            {
+                bool bRtn = true;
+                try
+                {
+                    XmlSerializer serializer = new XmlSerializer(typeof(SettingsContent));
+                    SettingsContent localLoaded;
+                    using (FileStream fs = new FileStream(LocalFile, FileMode.Open))
+                        localLoaded = (SettingsContent) serializer.Deserialize(fs);
+
+                    if (localLoaded == null)
+                        throw new Exception();
+
+                    _settings = localLoaded;
+
+
+                } catch (Exception)
+                {
+                    bRtn = false;
+                }
+
+                return bRtn;
+            }
+
+            public bool SaveLocal()
+            {
+                bool bRtn = true;
+                try
+                {
+                    if (File.Exists(LocalFile))
+                        File.Delete(LocalFile);
+
+                    XmlSerializer serializer = new XmlSerializer(typeof(SettingsContent));
+                    using (FileStream fs = new FileStream(LocalFile, FileMode.Create))
+                        serializer.Serialize(fs, Instance);
+                }
+                catch (Exception)
+                {
+                    bRtn = false;
+                }
+
+                return bRtn;
+            }
+
+            #region XML construct
+            [XmlRoot("Settings")]
+            public class SettingsContent
+            {
+                [XmlArray("Whitelist")]
+                public List<string> asWhitelist { get; set; } = new List<string>();
+            }
+            #endregion
+        }
+    }
+}
diff --git a/FullscreenLock/Settings.resx b/FullscreenLock/Settings.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/FullscreenLock/Settings.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file