Description: If the program did not shut down, capture the shutdown message, do not shut down or forced to withdraw from the procedure, shut down. Oh, we should not sabotage.
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File list (Check if you may need any files):
TestShutDown
............\bin
............\...\Debug
............\Form1.cs
............\Form1.Designer.cs
............\obj
............\...\Debug
............\...\TestShutDown.csproj.FileList.txt
............\Program.cs
............\Properties
............\..........\AssemblyInfo.cs
............\..........\Resources.Designer.cs
............\..........\Resources.resx
............\..........\Settings.Designer.cs
............\..........\Settings.settings
............\TestShutDown.csproj
............\TestShutDown.sln