File list (Check if you may need any files):
lecture4
........\Backup
........\......\lecture 4
........\......\.........\Form1.cs
........\......\.........\Form1.Designer.cs
........\......\.........\Form1.resx
........\......\.........\Form2.cs
........\......\.........\Form2.Designer.cs
........\......\.........\Form2.resx
........\......\.........\lecture 4.csproj
........\......\.........\Program.cs
........\......\.........\Properties
........\......\.........\..........\AssemblyInfo.cs
........\......\.........\..........\Resources.Designer.cs
........\......\.........\..........\Resources.resx
........\......\.........\..........\Settings.Designer.cs
........\......\.........\..........\Settings.settings
........\......\lecture 4.sln
........\lecture 4
........\.........\bin
........\.........\...\Debug
........\.........\...\.....\lecture 4.exe
........\.........\...\.....\lecture 4.pdb
........\.........\...\.....\lecture 4.vshost.exe
........\.........\...\.....\lecture 4.vshost.exe.manifest
........\.........\Form1.cs
........\.........\Form1.Designer.cs
........\.........\Form1.resx
........\.........\Form2.cs
........\.........\Form2.Designer.cs
........\.........\Form2.resx
........\.........\lecture 4.csproj
........\.........\obj
........\.........\...\Debug
........\.........\...\.....\lecture 4.csproj.FileListAbsolute.txt
........\.........\...\.....\lecture 4.csproj.GenerateResource.Cache
........\.........\...\.....\lecture 4.exe
........\.........\...\.....\lecture 4.pdb
........\.........\...\.....\lecture_4.Form1.resources
........\.........\...\.....\lecture_4.Form2.resources
........\.........\...\.....\lecture_4.Properties.Resources.resources
........\.........\...\.....\Refactor
........\.........\...\.....\TempPE
........\.........\...\.....\......\Properties.Resources.Designer.cs.dll
........\.........\...\lecture 4.csproj.FileList.txt
........\.........\Program.cs
........\.........\Properties
........\.........\..........\AssemblyInfo.cs
........\.........\..........\Resources.Designer.cs
........\.........\..........\Resources.resx
........\.........\..........\Settings.Designer.cs
........\.........\..........\Settings.settings
........\lecture 4.sln
........\UpgradeLog.XML
........\_UpgradeReport_Files
........\....................\UpgradeReport.css
........\....................\UpgradeReport.xslt
........\....................\UpgradeReport_Minus.gif
........\....................\UpgradeReport_Plus.gif