File list (Check if you may need any files):
RegularExpressionTester
.......................\RegularExpressionTester
.......................\.......................\app.config
.......................\.......................\Form1.cs
.......................\.......................\Form1.Designer.cs
.......................\.......................\Form1.resx
.......................\.......................\Helper.cs
.......................\.......................\Program.cs
.......................\.......................\Properties
.......................\.......................\..........\AssemblyInfo.cs
.......................\.......................\..........\Resources.Designer.cs
.......................\.......................\..........\Resources.resx
.......................\.......................\..........\Settings.Designer.cs
.......................\.......................\..........\Settings.settings
.......................\.......................\RegExp.xml
.......................\.......................\RegExpForm.cs
.......................\.......................\RegExpForm.Designer.cs
.......................\.......................\RegExpForm.resx
.......................\.......................\RegularExpressionTester.csproj
.......................\.......................\RegularExpressionTester.csproj.vspscc
.......................\RegularExpressionTester.sln
.......................\RegularExpressionTester.vssscc