That trick doesnt work since the very firts betas if i recall well, what i am doing is nliteing my disc on vmware with XP sp installed, will come back with report... I can confirm that if you have a Windows XP SP2 Corp share and integrate SP3 into it and then use the latest build of nlite v1.4.5 (Beta 2), and create an unattended install disc and enter your key it will work, I had the same problem and I believe the last unattended CD I created I was doing all my unattended stuff in Windows Vista But did it this time around on a Windows XP SP3 box and all is well. Thanks for the clarification on why I was having problems with my XP Key as well.