مشکل در تغییر یه مقدار در رجیستری

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تغییرات تو رجیستری ثبت نمیشن!!!
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من این کد ها رو توی یه Module قرار دادم

Public Const HKEY_CLASSES_ROOT = &H80000000
Public Const HKEY_CURRENT_CONFIG = &H80000005
Public Const HKEY_USERS = &H80000003
Public Const HKEY_CURRENT_USER = &H80000001
Public Const HKEY_LOCAL_MACHINE = &H80000002

Public Const REG_SZ = 1
Public Const REG_DWORD = 4
Public Const REG_NONE = 0
Public Const REG_MULTI_SZ = 7
Public Const REG_EXPAND_SZ = 2
Public Const REG_BINARY = 3

Public Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Public Declare Function RegSetValueEx Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As Any, ByVal cbData As Long) As Long
Public Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Public Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
Public Declare Function RegDeleteKey Lib "advapi32.dll" Alias "RegDeleteKeyA" (ByVal hKey As Long, ByVal lpSubKey As String) As Long
Public Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Public Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As Long, ByVal lpValueName As String, ByVal lpReserved As Long, lpType As Long, lpData As Any, lpcbData As Long) As Long

این هم کد های فرمم

کد:

Private Sub Command1_Click()
    Dim keyhand As Long
    Dim r As Long
    r = RegCreateKey(HKEY_CURRENT_USER, "SOFTWAREMicrosoftWindowsCurrentVersionPoliciesSystem", keyhand)
    r = RegSetValueEx(keyhand, "DisableTaskMgr", 0, REG_DWORD, 1, 4)
    r = RegCloseKey(keyhand)
End Sub

لطفا یه مثال برام بزنید(تغییر یه مقدار در رجیستری)

[lord_viper]

r = RegCreateKey(HKEY_CURRENT_USER, "Software\Microsoft\Windows\CurrentVersion\Policies\System", keyhand)
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