Imports System
Imports System.Threading
Imports System.Security.Permissions
Imports System.Security.Principal
Imports System.Diagnostics



Class ProcessDemo

    Public Shared Sub Main()
        Dim notePad As Process = Process.Start("notepad")
        Console.WriteLine("Started notepad process Id = " + notePad.Id.ToString())
        Console.WriteLine("All instances of notepad:")
        ' Get Process objects for all running instances on notepad.
        Dim localByName As Process() = Process.GetProcessesByName("notepad")
        Dim i As Integer = localByName.Length
        While i > 0
            ' You can use the process Id to pass to other applications or to
            ' reference that particular instance of the application.
            Console.WriteLine(localByName((i - 1)).Id.ToString())
            i -= 1
        End While
        Dim chosen As Process
        i = localByName.Length
        While i > 0
            Console.WriteLine("Enter a process Id to kill the process")
            Dim id As String = Console.ReadLine()
            If id = "" Then
                Exit While
            End If
            Try
                chosen = Process.GetProcessById(Int32.Parse(id))
            Catch e As Exception
                Console.WriteLine("Incorrect entry.")
                GoTo ContinueWhile1
            End Try
            If chosen.ProcessName = "notepad" Then
                chosen.Kill()
                chosen.WaitForExit()
            End If
            i -= 1
ContinueWhile1:
        End While

    End Sub 'Main 
End Class 'ProcessDemo

using System;
using System.Threading;
using System.Security.Permissions;
using System.Security.Principal;
using System.Diagnostics;

class ProcessDemo
{
    public static void Main()
    {
        Process notePad = Process.Start("notepad");
        Console.WriteLine("Started notepad process Id = " + notePad.Id);
        Console.WriteLine("All instances of notepad:");
        // Get Process objects for all running instances on notepad.
        Process[] localByName = Process.GetProcessesByName("notepad");
        int i = localByName.Length;
        while (i > 0)
        {
            // You can use the process Id to pass to other applications or to
            // reference that particular instance of the application.
            Console.WriteLine(localByName[i - 1].Id.ToString());
            i -= 1;
        }
        Process chosen;
        i = localByName.Length;
        while (i > 0)
        {
            Console.WriteLine("Enter a process Id to kill the process");
            string id = Console.ReadLine();
            if (id == "")
                break;
            try
            {
                chosen = Process.GetProcessById(Int32.Parse(id));
            }
            catch (Exception e)
            {
                Console.WriteLine("Incorrect entry.");
                continue;
            }
            if (chosen.ProcessName == "notepad")
            {
                chosen.Kill();
                chosen.WaitForExit();
            }
            i -= 1;
        }

    }
}