★ 第3遍问这个问题了. 关于VB操作注册表的问题.请高手相助！！！

问题1:
我想改变 HKEY_CLASSES_ROOT下的 * 这个子项的值,系统默认的名称为"默认",值为" " （或者值为“未设键值”）,我用
Call RegSetValueEx(hKey, "(默认)", 0, REG_SZ, ByVal "abcd", 26) 后,发现在*的子项下 又建立了一个 名称为(默认) ,值为abcd的值. 请问如何改变(系统不允许删除这个"默认"名称) 这个系统自动建立的"(默认)"？？ （注：'RegDeleteValue hKey, "(默认)" 也是不行的。只能删除自己建立的值。却不能删除系统建立的。 ）

(注:请各位看清楚了,我要改变的是"(默认)"这个名称,就是改变默认这两个字,而不是改变他的数据,好多人告诉我的都是改变"(默认)"的数据,不符合要求啊!! )




问题2:

请各位高手将以下代码复制到窗体中试试，然后在　HKEY_CURRENT_USER\AppEvents会发现一个名称是File的值．

以下代码当L＝1的时候，名称为File的键值为１，当L＝0 的时候却不起任何作用。请问是为什么？我的目的是，如何才能让File的值显示为0x00000000 (0)．(当值为0的时候就会显示的) （当然手工修改注册表可以正确实现的．）

Option Explicit
Private Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegCreateKey Lib "advapi32.dll" Alias "RegCreateKeyA" (ByVal hKey As Long, ByVal lpSubKey As String, phkResult As Long) As Long
Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As Long
Private Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As Long
Const HKEY_CURRENT_USER = &H80000001
Const REG_SZ = 1& '字符串值
'Const REG_BINARY = 3& '二进制值
Const REG_DWORD = 4& 'DWORD 值
Private 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




Private Sub Command1_Click()
Dim ret As Long, hKey As Long

ret = RegCreateKey(HKEY_CURRENT_USER, "AppEvents", hKey)

Dim L As Long
L = 1
Call RegSetValueEx(hKey, "File", 0, REG_DWORD, L, 4)
RegCloseKey hKey

End Sub