johnhc, thanks for your fast reply, I only integrate SP3 on a fresh Windows XP Pro "SP0" using nlite then install it on VirtualPC using my genuine serial. After a lots of test and a lots of Windows installation I discover the problem, thanks also to newsposter but too late I running nlite on Windows Vista 64 Bit. Ok I know, there are tons of posts that alert us to "do not run nlite on vista", but there are also many other posts that claims victory on f*****ng vista os. I tried to set as "Windows XP SP2 compatibility" and run nlite as Administrator as msfn users, but no lucky! Maybe tricks doesn't work on 64bit.