I am working on a unattended windows project... Here is my winnt.sif file: ;SetupMgrTag [Data] AutoPartition=1 MsDosInitiated="0" UnattendedInstall="Yes" [unattended] UnattendMode=FullUnattended OemSkipEula=Yes OemPreinstall=Yes TargetPath=\WINDOWS [GuiUnattended] AdminPassword=* EncryptedAdminPassword=NO OEMSkipRegional=1 TimeZone=85 OemSkipWelcome=1 [shell] CustomDefaultThemeFile = "%WinDir%\Resources\Themes\MyTheme.theme" [GuiRunOnce] "%systemdrive%\install\install.cmd" [userData] ProductKey="LUNAR-WINDO-WSFOR-X86MA-CHINE" FullName="User" OrgName="" ComputerName=COMPUTERNAME [Display] BitsPerPel=32 Xresolution=1024 YResolution=768 [identification] JoinWorkgroup=WORKGROUP [Networking] InstallDefaultComponents=Yes [branding] BrandIEUsingUnattended=Yes Home_Page=http://www.overclockerzone.net [iEPopupBlocker] BlockPopups=No FilterLevel=Low ShowInformationBar=Yes [WindowsFirewall] Profiles = WindowsFirewall.TurnOffFirewall [WindowsFirewall.TurnOffFirewall] Mode = 0 [Components] msmsgs=off msnexplr=off freecell=off hearts=off minesweeper=off pinball=off solitaire=off spider=off However, when I install it on virtual PC, It ignores the product key, and all the other things. How could I get this working? Any help will be appriciated. thanks.