File list (Check if you may need any files):
TestDragDropTreeView
....................\TestDragDropTreeView
....................\....................\App.xaml
....................\....................\App.xaml.cs
....................\....................\Properties
....................\....................\..........\AssemblyInfo.cs
....................\....................\..........\Resources.Designer.cs
....................\....................\..........\Resources.resx
....................\....................\..........\Settings.Designer.cs
....................\....................\..........\Settings.settings
....................\....................\Stuff.cs
....................\....................\TestDragDropTreeView.csproj
....................\....................\Window1.xaml
....................\....................\Window1.xaml.cs
....................\TestDragDropTreeView.sln