Speeddymon, thanks for help. My CD is original from Microsoft and the media is fine. I just slipstream localized versions of updates on my unattended cds. I run on a partition with 10Gb of free space and I copy the sources many times on different folders and partitions to try the slipstream process. No success. My final thought was reformat my disc and install a full system. After that everything is fine again. Maybe it was my fault or maybe nlite´s. If was mine, sorry to disturb. If was nLite, there is no problem. nLite rocks...