ok, thanks for yours suggestion... But... 1) if I'll use another oem licence version is still illegal? 2) There is some topics on internet in which you can find instructions to create you own customized unattended installation without using nlite. If I follow these, Is is still illegal? 3) with my previous created cd I've istalled xp for testing in a virtual machine and I've replaced both the serial and product id number... Everything seems to be running good ....