Private Declare Function RegDeleteValue Lib "advapi32.dll" Alias _    "RegDeleteValueA" (ByVal hKey As Long, ByVal lpValueName As String) As LongPrivate Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" _    (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, _    ByVal samDesired As Long, phkResult As Long) As LongPrivate Declare Function RegCloseKey Lib "advapi32.dll" (ByVal hKey As Long) As _    LongConst KEY_WRITE = &H20006  '((STANDARD_RIGHTS_WRITE Or KEY_SET_VALUE Or                            ' KEY_CREATE_SUB_KEY) And (Not SYNCHRONIZE))' Delete a registry value'' Return True if successful, False if the value hasn't been foundFunction DeleteRegistryValue(ByVal hKey As Long, ByVal KeyName As String, _    ByVal ValueName As String) As Boolean    Dim handle As Long        ' Open the key, exit if not found    If RegOpenKeyEx(hKey, KeyName, 0, KEY_WRITE, handle) Then Exit Function        ' Delete the value (returns 0 if success)    DeleteRegistryValue = (RegDeleteValue(handle, ValueName) = 0)    ' Close the handle    RegCloseKey handleEnd Function