diff --git a/PhotoRenamer.Base/FilesHelper.cs b/PhotoRenamer.Base/FilesHelper.cs
new file mode 100644
index 0000000..1f8c161
--- /dev/null
+++ b/PhotoRenamer.Base/FilesHelper.cs
@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace PhotoRenamer.Base
+{
+
+    public static class FilesHelper
+    {
+        private static readonly string[] SupportedFileExtensions = {".jpg", ".cr2", ".mp4"};
+
+        public static IEnumerable<string> FindSupportedFilesRecursively(string path)
+        {
+            var files = Directory.EnumerateFiles(path, "*", SearchOption.AllDirectories);
+            foreach (var file in files)
+            {
+                var fileExt = Path.GetExtension(file);
+                if(fileExt == null) continue;
+                foreach (var supportedFileExtension in SupportedFileExtensions)
+                {
+                    if (fileExt.Equals(supportedFileExtension, StringComparison.InvariantCultureIgnoreCase)) yield return file;
+                }
+            }
+        }
+    }
+}
diff --git a/PhotoRenamer.Base/PhotoRenamer.Base.csproj b/PhotoRenamer.Base/PhotoRenamer.Base.csproj
new file mode 100644
index 0000000..2147e79
--- /dev/null
+++ b/PhotoRenamer.Base/PhotoRenamer.Base.csproj
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ExifLibNet" Version="2.1.1" />
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+</Project>
diff --git a/PhotoRenamer.File/FileModule.cs b/PhotoRenamer.File/FileModule.cs
new file mode 100644
index 0000000..2d821bc
--- /dev/null
+++ b/PhotoRenamer.File/FileModule.cs
@@ -0,0 +1,29 @@
+using System;
+using PhotoRenamer.File.Views;
+using Prism.Ioc;
+using Prism.Modularity;
+using Prism.Regions;
+
+namespace PhotoRenamer.File
+{
+    public class FileModule : IModule
+    {
+        private readonly IRegionManager _regionManager;
+
+        public FileModule(IRegionManager regionManager)
+        {
+            _regionManager = regionManager;
+        }
+
+        public void OnInitialized(IContainerProvider containerProvider)
+        {
+
+        }
+
+        public void RegisterTypes(IContainerRegistry containerRegistry)
+        {
+            containerRegistry.RegisterForNavigation<ViewA>();
+            _regionManager.RequestNavigate("ContentRegion", new Uri(nameof(ViewA), UriKind.Relative));
+        }
+    }
+}
\ No newline at end of file
diff --git a/PhotoRenamer.File/PhotoRenamer.File.csproj b/PhotoRenamer.File/PhotoRenamer.File.csproj
new file mode 100644
index 0000000..d3bf57f
--- /dev/null
+++ b/PhotoRenamer.File/PhotoRenamer.File.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <AssemblyName>PhotoRenamer.File</AssemblyName>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Prism.Wpf" Version="7.2.0.1422" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/PhotoRenamer.File/ViewModels/ViewAViewModel.cs b/PhotoRenamer.File/ViewModels/ViewAViewModel.cs
new file mode 100644
index 0000000..8a9ddee
--- /dev/null
+++ b/PhotoRenamer.File/ViewModels/ViewAViewModel.cs
@@ -0,0 +1,12 @@
+using Prism.Mvvm;
+using System.Windows.Input;
+
+namespace PhotoRenamer.File.ViewModels
+{
+    public class ViewAViewModel : BindableBase
+    {
+        public ICommand SelectFilesCommand { get; }
+
+        public ICommand ClearCommand { get; }
+    }
+}
diff --git a/PhotoRenamer.File/Views/ViewA.xaml b/PhotoRenamer.File/Views/ViewA.xaml
new file mode 100644
index 0000000..d5ae3f8
--- /dev/null
+++ b/PhotoRenamer.File/Views/ViewA.xaml
@@ -0,0 +1,41 @@
+<UserControl
+    x:Class="PhotoRenamer.File.Views.ViewA"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:prism="http://prismlibrary.com/"
+    xmlns:viewModels="clr-namespace:PhotoRenamer.File.ViewModels"
+    d:DataContext="{d:DesignInstance viewModels:ViewAViewModel}"
+    d:DesignHeight="300"
+    d:DesignWidth="300"
+    prism:ViewModelLocator.AutoWireViewModel="True"
+    mc:Ignorable="d">
+    <DockPanel>
+        <ToolBarTray DockPanel.Dock="Top" Orientation="Horizontal">
+            <ToolBar ToolBarTray.IsLocked="True">
+                <Button Command="{Binding SelectFilesCommand}" Content="Select Files" />
+                <Button Command="{Binding ClearCommand}" Content="Clear" />
+            </ToolBar>
+        </ToolBarTray>
+        <Grid>
+            <Grid.RowDefinitions>
+                <RowDefinition />
+                <RowDefinition Height="Auto" />
+                <RowDefinition />
+            </Grid.RowDefinitions>
+            <GroupBox
+                Grid.Row="0"
+                Margin="5"
+                Header="Source">
+                <ListView />
+            </GroupBox>
+            <GroupBox
+                Grid.Row="2"
+                Margin="5"
+                Header="Target">
+                <ListView />
+            </GroupBox>
+        </Grid>
+    </DockPanel>
+</UserControl>
diff --git a/PhotoRenamer.File/Views/ViewA.xaml.cs b/PhotoRenamer.File/Views/ViewA.xaml.cs
new file mode 100644
index 0000000..d8326e8
--- /dev/null
+++ b/PhotoRenamer.File/Views/ViewA.xaml.cs
@@ -0,0 +1,13 @@
+namespace PhotoRenamer.File.Views
+{
+    /// <summary>
+    /// Interaction logic for ViewA.xaml
+    /// </summary>
+    public partial class ViewA
+    {
+        public ViewA()
+        {
+            InitializeComponent();
+        }
+    }
+}
diff --git a/PhotoRenamer.Test/Assets/IMG_3590.CR2 b/PhotoRenamer.Test/Assets/IMG_3590.CR2
new file mode 100644
index 0000000..e69de29
diff --git a/PhotoRenamer.Test/Assets/NIX.TXT b/PhotoRenamer.Test/Assets/NIX.TXT
new file mode 100644
index 0000000..e69de29
diff --git a/PhotoRenamer.Test/Assets/Subfolder/IMG_3590.JPG b/PhotoRenamer.Test/Assets/Subfolder/IMG_3590.JPG
new file mode 100644
index 0000000..e69de29
diff --git a/PhotoRenamer.Test/FilesTest.cs b/PhotoRenamer.Test/FilesTest.cs
new file mode 100644
index 0000000..04a4d3c
--- /dev/null
+++ b/PhotoRenamer.Test/FilesTest.cs
@@ -0,0 +1,21 @@
+using System;
+using System.IO;
+using System.Linq;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace PhotoRenamer.Test
+{
+    [TestClass]
+    public class FilesTest
+    {
+        [TestMethod]
+        public void FindSupportedFiles()
+        {
+            var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Assets");
+            var files = Base.FilesHelper.FindSupportedFilesRecursively(path).ToArray();
+            Assert.AreEqual(2, files.Length);
+            Assert.AreEqual("IMG_3590.CR2", Path.GetFileName(files[0]));
+            Assert.AreEqual("IMG_3590.JPG", Path.GetFileName(files[1]));
+        }
+    }
+}
diff --git a/PhotoRenamer.Test/PhotoRenamer.Test.csproj b/PhotoRenamer.Test/PhotoRenamer.Test.csproj
new file mode 100644
index 0000000..46caa14
--- /dev/null
+++ b/PhotoRenamer.Test/PhotoRenamer.Test.csproj
@@ -0,0 +1,39 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.4.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.0.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.0.0" />
+    <PackageReference Include="coverlet.collector" Version="1.1.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Assets\IMG_3590.CR2">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="Assets\NIX.TXT">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Update="Assets\Subfolder\IMG_3590.JPG">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PhotoRenamer.Base\PhotoRenamer.Base.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/PhotoRenamer.sln b/PhotoRenamer.sln
new file mode 100644
index 0000000..3edff04
--- /dev/null
+++ b/PhotoRenamer.sln
@@ -0,0 +1,43 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29609.76
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PhotoRenamer", "PhotoRenamer\PhotoRenamer.csproj", "{C2C8C238-CB3D-4DDA-96FC-297D029F6022}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PhotoRenamer.File", "PhotoRenamer.File\PhotoRenamer.File.csproj", "{185069C2-C1EB-4116-8C33-952A2C0BA1F9}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PhotoRenamer.Test", "PhotoRenamer.Test\PhotoRenamer.Test.csproj", "{07F827BC-CF99-4E81-A5C7-54085C97FC10}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PhotoRenamer.Base", "PhotoRenamer.Base\PhotoRenamer.Base.csproj", "{DE85C395-3D50-4C12-9B7A-021180E26CE1}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C2C8C238-CB3D-4DDA-96FC-297D029F6022}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C2C8C238-CB3D-4DDA-96FC-297D029F6022}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C2C8C238-CB3D-4DDA-96FC-297D029F6022}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C2C8C238-CB3D-4DDA-96FC-297D029F6022}.Release|Any CPU.Build.0 = Release|Any CPU
+		{185069C2-C1EB-4116-8C33-952A2C0BA1F9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{185069C2-C1EB-4116-8C33-952A2C0BA1F9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{185069C2-C1EB-4116-8C33-952A2C0BA1F9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{185069C2-C1EB-4116-8C33-952A2C0BA1F9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{07F827BC-CF99-4E81-A5C7-54085C97FC10}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{07F827BC-CF99-4E81-A5C7-54085C97FC10}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{07F827BC-CF99-4E81-A5C7-54085C97FC10}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{07F827BC-CF99-4E81-A5C7-54085C97FC10}.Release|Any CPU.Build.0 = Release|Any CPU
+		{DE85C395-3D50-4C12-9B7A-021180E26CE1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DE85C395-3D50-4C12-9B7A-021180E26CE1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DE85C395-3D50-4C12-9B7A-021180E26CE1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DE85C395-3D50-4C12-9B7A-021180E26CE1}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {68BF90FC-8E63-4A5F-9CC2-39CCBEACCF0F}
+	EndGlobalSection
+EndGlobal
diff --git a/PhotoRenamer.sln.DotSettings b/PhotoRenamer.sln.DotSettings
new file mode 100644
index 0000000..444b8cf
--- /dev/null
+++ b/PhotoRenamer.sln.DotSettings
@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Renamer/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
\ No newline at end of file
diff --git a/PhotoRenamer/App.xaml b/PhotoRenamer/App.xaml
new file mode 100644
index 0000000..ee6062a
--- /dev/null
+++ b/PhotoRenamer/App.xaml
@@ -0,0 +1,8 @@
+<prism:PrismApplication
+    x:Class="PhotoRenamer.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="clr-namespace:PhotoRenamer"
+    xmlns:prism="http://prismlibrary.com/">
+    <Application.Resources />
+</prism:PrismApplication>
diff --git a/PhotoRenamer/App.xaml.cs b/PhotoRenamer/App.xaml.cs
new file mode 100644
index 0000000..ef9c97d
--- /dev/null
+++ b/PhotoRenamer/App.xaml.cs
@@ -0,0 +1,30 @@
+using Prism.Ioc;
+using PhotoRenamer.Views;
+using System.Windows;
+using PhotoRenamer.File;
+using Prism.Modularity;
+
+namespace PhotoRenamer
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App
+    {
+        protected override Window CreateShell()
+        {
+            return Container.Resolve<MainWindow>();
+        }
+
+        protected override void RegisterTypes(IContainerRegistry containerRegistry)
+        {
+
+        }
+
+        protected override void ConfigureModuleCatalog(IModuleCatalog moduleCatalog)
+        {
+            moduleCatalog.AddModule<FileModule>();
+            base.ConfigureModuleCatalog(moduleCatalog);
+        }
+    }
+}
diff --git a/PhotoRenamer/PhotoRenamer.csproj b/PhotoRenamer/PhotoRenamer.csproj
new file mode 100644
index 0000000..25589f7
--- /dev/null
+++ b/PhotoRenamer/PhotoRenamer.csproj
@@ -0,0 +1,25 @@
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <UseWPF>true</UseWPF>
+    <AssemblyName>PhotoRenamer</AssemblyName>
+    <StartupObject>PhotoRenamer.App</StartupObject>
+    <PublishTrimmed>true</PublishTrimmed>
+    <PublishReadyToRun>true</PublishReadyToRun>
+    <PublishSingleFile>false</PublishSingleFile>
+    <RuntimeIdentifier>win-x64</RuntimeIdentifier>
+    <RunAnalyzersDuringBuild>true</RunAnalyzersDuringBuild>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="JetBrains.Annotations" Version="2019.1.3" />
+    <PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Prism.DryIoc" Version="7.2.0.1422" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\PhotoRenamer.File\PhotoRenamer.File.csproj" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/PhotoRenamer/ViewModels/MainWindowViewModel.cs b/PhotoRenamer/ViewModels/MainWindowViewModel.cs
new file mode 100644
index 0000000..d634364
--- /dev/null
+++ b/PhotoRenamer/ViewModels/MainWindowViewModel.cs
@@ -0,0 +1,16 @@
+using JetBrains.Annotations;
+using Prism.Mvvm;
+
+namespace PhotoRenamer.ViewModels
+{
+    [UsedImplicitly]
+    public class MainWindowViewModel : BindableBase
+    {
+        private string _title = "Prism Application";
+        public string Title
+        {
+            get => _title;
+            set => SetProperty(ref _title, value);
+        }
+    }
+}
diff --git a/PhotoRenamer/Views/MainWindow.xaml b/PhotoRenamer/Views/MainWindow.xaml
new file mode 100644
index 0000000..4e34d0e
--- /dev/null
+++ b/PhotoRenamer/Views/MainWindow.xaml
@@ -0,0 +1,18 @@
+<Window
+    x:Class="PhotoRenamer.Views.MainWindow"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:prism="http://prismlibrary.com/"
+    xmlns:viewModels="clr-namespace:PhotoRenamer.ViewModels"
+    Title="{Binding Title}"
+    Width="525"
+    Height="350"
+    d:DataContext="{d:DesignInstance viewModels:MainWindowViewModel}"
+    prism:ViewModelLocator.AutoWireViewModel="True"
+    mc:Ignorable="d">
+    <Grid>
+        <ContentControl prism:RegionManager.RegionName="ContentRegion" />
+    </Grid>
+</Window>
diff --git a/PhotoRenamer/Views/MainWindow.xaml.cs b/PhotoRenamer/Views/MainWindow.xaml.cs
new file mode 100644
index 0000000..14462a7
--- /dev/null
+++ b/PhotoRenamer/Views/MainWindow.xaml.cs
@@ -0,0 +1,15 @@
+using System.Windows;
+
+namespace PhotoRenamer.Views
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+        }
+    }
+}