Logoff help in vs 2005

Greg:

This works fine with XP; I seem to recall some issues with forced logoffs in Vista but I would have to double check on my Vista machine.  Here is a really short program defining a form class with a single button; the click event handler for the button calls for the logoff.  The important parts are importing System.Runtime.InteropServices, writing the DLL Import statement, and the calling the method defined in the DLL import:

Here is the full text of the form class:

Imports System.Runtime.InteropServices

Public Class Form1

     ' The DLL Import
     Private Declare Function ExitWindowsEx Lib "user32.DLL" _
     (ByVal iFlag As Integer, ByVal iCause As Integer) As Integer

     Private Sub Button1_Click(ByVal sender As System.Object, _
     ByVal e As System.EventArgs) Handles Button1.Click
          ' Call the DLL Imported Function - These args call for the logoff
          ExitWindowsEx(0, 0)
     End Sub

End Class