Private Const TH32CS_SNAPPROCESS As Long = 2&
Private Const MAX_PATH As Integer = 260

Private Type PROCESSENTRY32
    dwSize As Long
    cntUsage As Long
    th32ProcessID As Long
    th32DefaultHeapID As Long
    th32ModuleID As Long
    cntThreads As Long
    th32ParentProcessID As Long
    pcPriClassBase As Long
    dwFlags As Long
    szExeFile As String * MAX_PATH
End Type
   
Private Declare Function CreateToolhelpSnapshot Lib "kernel32" _
    Alias "CreateToolhelp32Snapshot" _
   (ByVal lFlags As Long, ByVal lProcessID As Long) As Long

Private Declare Function ProcessFirst Lib "kernel32" _
    Alias "Process32First" _
   (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long

Private Declare Function ProcessNext Lib "kernel32" _
    Alias "Process32Next" _
   (ByVal hSnapShot As Long, uProcess As PROCESSENTRY32) As Long

Private Declare Sub CloseHandle Lib "kernel32" _
   (ByVal hPass As Long)

Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
'Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long

Dim Procs() As PROCESSENTRY32
Dim NOP%

Private Sub List1_Click()
 
 Dim i, a&, EC&
 Dim Task$
 Dim ProcessID, hProcess As Long

 Task = Procs(List1.ListIndex).szExeFile

If MsgBox("Wollen Sie folgendes Programm wirklich beenden ?" & vbCrLf & Task, vbYesNo, "Achtung !") = vbNo Then Exit Sub

ProcessID = Procs(List1.ListIndex).th32ProcessID
hProcess = OpenProcess(&H1, 1, ProcessID)
a = GetExitCodeProcess(hProcess, EC)
a = TerminateProcess(hProcess, EC)
CloseHandle hProcess

 Auflisten

End Sub

Private Sub Auflisten()
   
    Dim hSnapShot As Long
    Dim uProcess As PROCESSENTRY32
    Dim r As Long
   
    ReDim Procs(0)
   
    List1.Clear
   
    hSnapShot = CreateToolhelpSnapshot(TH32CS_SNAPPROCESS, 0&)

    If hSnapShot = 0 Then Exit Sub

    uProcess.dwSize = Len(uProcess)
    r = ProcessFirst(hSnapShot, uProcess)

    Dim t As String

    Do While r
               
        t$ = ztrim(uProcess.szExeFile)
               
        List1.AddItem t$
       
        r = ProcessNext(hSnapShot, uProcess)
        NOP = NOP + 1
        ReDim Preserve Procs(NOP)
        Procs(NOP).szExeFile = uProcess.szExeFile
        Procs(NOP).cntThreads = uProcess.cntThreads
        Procs(NOP).th32ProcessID = uProcess.th32ProcessID
        Procs(NOP).th32ParentProcessID = uProcess.th32ParentProcessID

    Loop

    Call CloseHandle(hSnapShot)

End Sub

Private Function ztrim(ByVal z As String) As String

 Dim x1 As Long

 x1 = InStr(z, vbNullChar)
 
 If x1 > 1 Then
  z = Mid$(z, 1, x1 - 1)
 End If
 If x1 = 1 Then
  z = ""
 End If
 
 ztrim = z
 
End Function