Win 2003 Unattended Install

[IT_Ranger]

I'm sorry if this is the wrong place, I'm posting here since the W2K3 section mentions the similarities to XP.

Thanks to many of the tips posted here, I have my unattened XP disk working great.

Now I need to do the same for W2K3 Server Standard. The source CD is from MSDN as is the Product Key.

Installing using the CD and Product Key works fine.

When I try an unattended install, Setup thinks that the install is an Upgrade and wants a Windows 3.51, NT 4.0 or W2K server disk in the cd to verify that the upgrade qualifies.

I ran setupmgr to create a new winnt.sif and made sure there were no winnt.si_ files anywhere.

Any thoughts.

Thanks

Here is my winnt.sif:

;SetupMgrTag
[Unattended]
    Unattendmode=FullUnattended
    OemPreinstall=Yes
    TargetPath=\WINDOWS
    Filesystem=LeaveAlone
    NoWaitAfterGUIMode=1
    DriverSigningPolicy=Ignore
    Repartition=No
    OemSkipEula=Yes
    OemPnPDriversPath="DRIVERS\AUD;DRIVERS\MDM;DRIVERS\NET1;DRIVERS\NET2;"
    UnattendSwitch = Yes
    AutoActivate = No
    
[Data]
    UnattendedInstall="Yes"
    MSDosInitiated="0"
    AutoPartition=1

[GuiUnattended]
    AdminPassword="admpass"
    EncryptedAdminPassword=No
    OEMSkipRegional=1
    AutoLogon=Yes
    AutoLogonCount=1
    OemSkipWelcome=1
    TimeZone="035"

[RegionalSettings]
    LanguageGroup=1
    Language=00000409

[UserData]
    FullName=
    OrgName=
    ComputerName=ITSetup
    ProductKey=[** MSDN Key **]

[Branding]
    BrandIEUsingUnattended = Yes
    
[URL]
    Home_Page=http://

[Networking]
    InstallDefaultComponents=Yes

[Identification]
    JoinWorkgroup=WORKGROUP

[Display]
    BitsPerPel=16
    Xresolution=1024
    YResolution=768
    Vrefresh=70

[LicenseFilePrintData]
    AutoMode=PerSeat

[Shell]
    DefaultStartPanelOff = Yes
    DefaultThemesOff = Yes

[GuiRunOnce]
    Command0=%systemdrive%\install\main_run.cmd