Newer tried this theory (I´m an nLite´r) but think it works. Copy your working uxtheme.dll, then Next, ModifyPE your uxtheme.dll Next, at the command prompt, type in this command. "makecab uxtheme.dll", It will become uxtheme.dl_ Last, replace your uxtheme.dl_ in your unattended CD/DVD. Read this Unattended Help