Как выключить компьютер в Windows XP? - VB

Option Explicit
Private Declare Function ExitWindowsEx Lib 'user32' (ByVal uFlags As Long, ByVal dwReserved As Long) As Long
Private Declare Function GetCurrentProcess Lib 'kernel32' () As Long
Private Declare Function OpenProcessToken Lib 'advapi32' (ByVal ProcessHandle As Long, ByVal DesiredAccess As Long, TokenHandle As Long) As Long
Private Declare Function LookupPrivilegeValue Lib 'advapi32' Alias 'LookupPrivilegeValueA' (ByVal lpSystemName As String, ByVal lpName As String, lpLuid As LUID) As Long
Private Declare Function AdjustTokenPrivileges Lib 'advapi32' (ByVal TokenHandle As Long, ByVal DisableAllPrivileges As Long, NewState As TOKEN_PRIVILEGES, ByVal BufferLength As Long, PreviousState As TOKEN_PRIVILEGES, ReturnLength As Long) As Long
 
Private Const EWX_LOGOFF = 0
Private Const EWX_SHUTDOWN = 1
Private Const EWX_REBOOT = 2
Private Const EWX_FORCE = 4
Private Const ANYSIZE_ARRAY = 1
 
Type LUID
    LowPart As Long
    HighPart As Long
End Type
Type LUID_AND_ATTRIBUTES
    pLuid As LUID
    Attributes As Long
End Type
Type TOKEN_PRIVILEGES
    PrivilegeCount As Long
    Privileges(ANYSIZE_ARRAY) As LUID_AND_ATTRIBUTES
End Type
 
 
Public Sub Reboot()
    Dim ret As Long
    Dim Flags As Long
    Flags = EWX_REBOOT
    Flags = Flags + EWX_FORCE
    If IsWinNT Then EnableShutDown
    ExitWindowsEx Flags, 0
End Sub
 
Private Sub EnableShutDown()
    Dim hProc As Long
    Dim hToken As Long
    Dim mLUID As LUID
    Dim mPriv As TOKEN_PRIVILEGES
    Dim mNewPriv As TOKEN_PRIVILEGES
    hProc = GetCurrentProcess()
    OpenProcessToken hProc, TOKEN_ADJUST_PRIVILEGES + TOKEN_QUERY, hToken
    LookupPrivilegeValue '', 'SeShutdownPrivilege', mLUID
    mPriv.PrivilegeCount = 1
    mPriv.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
    mPriv.Privileges(0).pLuid = mLUID
    ' enable shutdown privilege for the current application
    AdjustTokenPrivileges hToken, False, mPriv, 4 + (12 * mPriv.PrivilegeCount), mNewPriv, 4 + (12 * mNewPriv.PrivilegeCount)
End Sub
 
Private Function IsWinNT() As Boolean
    Dim myOS As OSVERSIONINFO
    myOS.dwOSVersionInfoSize = Len(myOS)
    GetVersionEx myOS
    IsWinNT = (myOS.dwPlatformId = VER_PLATFORM_WIN32_NT)
End Function