Hi All, I have the following problem.... At first I was made slipstreamed OEM Win XP Prof. SP3 Czech disc from original OEM Win XP SP2 CD. Then I was customized installation through nLite and add some apps and updates. Everything is made under the virtual machine - Win XP SP2 - MS Virtual PC 2007 (host OS is Vista business x64). When I create ISO image and when I want to try it in other virtual machine, installation crash on "File CDFS.SYS is corrupt." error. In attachment is my LastSession.ini file... Please help me! Posledn__relace.ini