public static extern NtStatus SamCreateUserInDomain( [In] IntPtr DomainHandle, [In] ref UnicodeString AccountName, [In] SamUserAccess DesiredAccess, [Out] out IntPtr UserHandle, [Out] out int RelativeId );
public static extern NtStatus SamOpenUser( [In] IntPtr DomainHandle, [In] SamUserAccess DesiredAccess, [In] int UserId, [Out] out IntPtr UserHandle );