using System;
using System.Windows.Forms;
using System.Diagnostics;
using System.IO; 

public class MyForm : Form { 
    [STAThread] 
    static void Main() { 
    	Application.Run(new MyForm()); 
    } // ==================================================================================  
    public MyForm() { 
        Button button=new Button(); 
        button.SetBounds(20,20,100,100); 
        this.Controls.Add(button); 
        button.Click+=(o,e)=>{ cheat(); };
    } // ================================================================================== 
    protected override void OnActivated(EventArgs e) { 
    	bool automatic = false; // === true にすると、立ち上げただけで実行！！！
    	if (automatic) { cheat(); } 
    } // ================================================================================== 
    private void cheat() { 
	string exeFile = "selfdeleting.exe", // === c#-exe ; 作成するファイル名を設定！！！ 
		assistantFile = "assistant.vbs"; // === vbs to be created temporarily !!! 
	// ################################################# 
	// === if you want to do some 'work', do here !!! 
	// ################################################# 
	// === create an assistant file and write into !!! 
	StreamWriter vbs = new StreamWriter(assistantFile); 
	vbs.WriteLine("Dim wait"); // in the file dim two variables
	vbs.WriteLine("Dim fso"); 
	// wait 5 seconds
	vbs.WriteLine("wait = dateadd(\"s\",5,now)");
	vbs.WriteLine("do until now > wait");
	vbs.WriteLine("loop"); 
	// use scripting object
	vbs.WriteLine("Set fso = CreateObject(\"Scripting.FileSystemObject\")"); 
	vbs.WriteLine("fso.DeleteFile(\""+exeFile+"\")"); 
	vbs.WriteLine("fso.DeleteFile(\""+assistantFile+"\")"); 
	// close the StreamWriter 
	vbs.Flush();
	vbs.Close();
// === vbs file of content like the following will be made !!! 
/* 
Dim wait
Dim fso
wait = dateadd("s",5,now)
do until now > wait
loop
Set fso = CreateObject("Scripting.FileSystemObject")
fso.DeleteFile("selfdeleting.exe") // === depends the name !!! 
fso.DeleteFile("assistant.vbs")
*/ 
	// === launch the vb script('assistant') file !!! 
	Process myProcess = new Process();
	myProcess.StartInfo.FileName = assistantFile;
	myProcess.StartInfo.WindowStyle = ProcessWindowStyle.Minimized;
	myProcess.Start(); 
	// === vbs process is activated, and in a short time,
	//			kills ***.exe and assistant files, and process ends!!! 
	this.Close(); 
    } // ================================================================================== 
} // ######################################################################################