File list (Check if you may need any files):
EmailCheckExt
.............\EmailCheck.csproj
.............\EmailCheck.sln
.............\EmailCheck.suo
.............\Program.cs
.............\Properties
.............\..........\AssemblyInfo.cs
EmailCheck窗体
..............\EmailCheck.csproj
..............\EmailCheck.sln
..............\EmailCheck.suo
..............\Form1.cs
..............\Form1.Designer.cs
..............\Form1.resx
..............\Program.cs
..............\Properties
..............\..........\AssemblyInfo.cs
..............\..........\Resources.Designer.cs
..............\..........\Resources.resx
..............\..........\Settings.Designer.cs
..............\..........\Settings.settings