vb自动关机程序

Private Declare Function ExitWindowsEx Lib "user32" (ByVal uFlags As Long, ByVal dwReserved 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 closeTime As String
Sub AdjustTokenPrivilegesForNT()
   
    Dim hdlProcessHandle As Long
    Dim hdlTokenHandle As Long
    Dim tmpLuid As LUID
    Dim tkp As TOKEN_PRIVILEGES
    Dim tkpNewButIgnored As TOKEN_PRIVILEGES
    Dim lBufferNeeded As Long
   
    hdlProcessHandle = GetCurrentProcess()
    OpenProcessToken hdlProcessHandle, (TOKEN_ADJUST_PRIVILEGES Or _
    TOKEN_QUERY), hdlTokenHandle
   
    LookupPrivilegeValue "", "SeShutdownPrivilege", tmpLuid
    tkp.PrivilegeCount = 1
    tkp.Privileges(0).pLuid = tmpLuid
    tkp.Privileges(0).Attributes = SE_PRIVILEGE_ENABLED
   
    AdjustTokenPrivileges hdlTokenHandle, False, tkp, _
    Len(tkpNewButIgnored), tkpNewButIgnored, _
    lBufferNeeded
End Sub
Private Sub Form_Load()
 Dim fso As New FileSystemObject
    Dim ts As TextStream
    Dim txt, iniFilePath As String
    iniFilePath = App.Path & "\" & "system.ini"
     If fso.FileExists(iniFilePath) Then
       Set ts = fso.OpenTextFile(App.Path & "\" & "system.ini")
       closeTime = ts.ReadLine
       ts.Close
       Set ts = Nothing
       If Len(Trim(closeTime)) = 0 Then
            Set ts = fso.CreateT