File list (Check if you may need any files):
WPFTabbedMDIDocumentSolution\WPFTabbedMDIDocument
............................\....................\App.xaml
............................\....................\App.xaml.cs
............................\....................\bin
............................\....................\...\Debug
............................\....................\...\.....\WPFTabbedMDIDocument.vshost.exe
............................\....................\...\.....\WPFTabbedMDIDocument.vshost.exe.manifest
............................\....................\ITabbedMDI.cs
............................\....................\Properties
............................\....................\..........\AssemblyInfo.cs
............................\....................\..........\Resources.Designer.cs
............................\....................\..........\Resources.resx
............................\....................\..........\Settings.Designer.cs
............................\....................\..........\Settings.settings
............................\....................\ucTab1.xaml
............................\....................\ucTab1.xaml.cs
............................\....................\ucTab2.xaml
............................\....................\ucTab2.xaml.cs
............................\....................\Window1.xaml
............................\....................\Window1.xaml.cs
............................\....................\WPFTabbedMDIDocument.csproj
............................\WPFTabbedMDIDocumentSolution.sln
............................\WPFTabbedMDIDocumentSolution.suo