Hi everyone ! After reading the unattended guide on this site, I dedided to give it a try. To begin, I took my XP Home OEM SP1a CD, and slipstreamed SP2 (using no third-party tool). Then I burnt my ISO to check if I can continue with hotfixes, drivers, applications, etc. All worked fine during text-mode setup, but after the first reboot, at the very beginning of the GUI-setup (T-39), I got this strange error : « Invalid character in GDIPLUS.CA_ » (I translated it, my XP is a french one) The setup stops on the error, asking me for a reboot, then shows me the same error, then asks for rebooting, etc. I checked my CD, which was burnt at 10X, and the file GDIPLUS.CA_ was there, binary identical to the one on my original CD (I checked that with WinMerge 2.2.2). Since it's a cabbed-CATfile, I can't get another one from another source (the GDIPlus package from MS does contain only the DLL) Any idea to solve this issue ? Or am I condamned to installing SP1a then SP2, loosing hundred of MB on my "small" 10GB drive ? (I prefer having more MP3's ) Thanks for reading that ! PS: the file is far into the tree : CD:\I386\ASMST\10100\MSFT\GDIPLUS\GDIPLUS.CA_ (not sure if it's the exact path, but you should find it easily with that)