[DllImport("advapi32.dll", EntryPoint = "RegEnumKeyEx")]

extern private static int RegEnumKeyEx(UIntPtr hkey,

Declare Auto Function RegEnumKeyEx Lib "Advapi32" ( _

LONG RegEnumKeyEx(

     ret = RegEnumKeyEx(hKey, i, sb, NameSize, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero)