For Each Prozess As Process In (Checkliste)
            Prozess.Kill()
        Next

Public Class frmProcessKiller
 
    Dim pd As New DataTable
 
    Dim dgv As New DataGridView With _
        {.Parent = Me, .Height = 300, .Width = 500}
 
    Dim WithEvents btnKill As New Button With _
        {.Parent = Me, .Text = "Kill", .Top = 320}
 
    Dim WithEvents btnRefresh As New Button With _
        {.Parent = Me, .Text = "Refresh", .Top = 320, .Left = 200}
 
 
    Private Sub frmProcessList_Load(sender As System.Object, _
        e As System.EventArgs) Handles MyBase.Load
 
        Me.Size = New Size(510, 370)
        Me.FormBorderStyle = Windows.Forms.FormBorderStyle.Fixed3D
 
        With pd.Columns
            .Add("Kill", GetType(Boolean))
            .Add("PID", GetType(Integer))
            .Add("Name", GetType(String))
            .Add("Start", GetType(Date))
        End With
 
        For Each c As DataColumn In pd.Columns
            If Not c.ColumnName = "Kill" Then
                c.ReadOnly = True
            End If
        Next c
 
        Me.Show()
        My.Application.DoEvents()
 
        dgv.AllowUserToAddRows = False
        dgv.AllowUserToDeleteRows = False
 
        FillProcessTable()
    End Sub
 
 
 
    Private Sub btnKill_Click(sender As Object, _
        e As System.EventArgs) Handles btnKill.Click
 
        Dim Pid As Integer
        For Each r As DataRow In pd.Rows
            If DirectCast(r("Kill"), Boolean) = True Then
                Try
                    Pid = DirectCast(r("PID"), Integer)
                    Dim p As Process = Process.GetProcessById(Pid)
                    If p.ProcessName = r("Name").ToString And _
                       p.StartTime = CDate(r("Start")) Then
                        Try
                            p.Kill()
                        Catch ex As Exception
                            MsgBox("PID: " & Pid.ToString & "  " & ex.Message)
                        End Try
                    End If
                Catch ex As Exception
                    MsgBox(CStr(Pid) & " " & ex.Message)
                End Try
 
            End If
        Next r
        FillProcessTable()
    End Sub
 
 
    Private Sub FillProcessTable()
 
        Me.Text = "Liste der Prozesse wird erstellt - Bitte warten ..."
        btnKill.Enabled = False
        btnRefresh.Enabled = False
 
        dgv.DataSource = Nothing
        Me.Refresh()
 
        pd.Rows.Clear()
        For Each p As Diagnostics.Process In Diagnostics.Process.GetProcesses
            Try
                pd.Rows.Add("false", p.Id, p.ProcessName, p.StartTime)
            Catch
            End Try
        Next p
        dgv.DataSource = pd
        dgv.Refresh()
        btnKill.Enabled = True
        btnRefresh.Enabled = True
        Me.Text = "Prozessliste"
    End Sub
 
 
    Private Sub btnRefresh_Click(sender As Object, _
                    e As System.EventArgs) Handles btnRefresh.Click
        FillProcessTable()
    End Sub
End Class

Zitat:

Hallo! Prozesse zu killen ist nicht die "feine Art". Solche Programme sollten die Option besitzen, eine Beendigungs-Mitteilung zu empfangen, nach der sie sich zum nächst möglichen Zeitpunkt geordnet terminieren.