Sysprep Vista ~ Unattend Join Domain not working

Has anyone else been able to get the UnattendJoin Domain Sysprep setting to work in Vista?  Mine keeps failing.  I have verified the account is active and has rights and the password is correct but it keeps failing.
Here is the section in my xml file.
    <settings pass="specialize">
        <component name="Microsoft-Windows-UnattendedJoin" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="" xmlns:xsi="">
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Brian PiercePhotographerCommented:
Check that the IP information the vista is using (either assigned statically or via DHCP) are correct for the domain and include the preferred DNS server settiing which points to the Domain Controller.
mentok74Author Commented:
The IP and DNS are set to DHCP.  I have no problem manually adding the machine to the domain only through Sysprep.
mentok74Author Commented:
Can you be more specific?  I have spent more than 40hours on the phone with MS support working with WSIM, ImageX, WinPE and Sysprep and still haven not been able to accomplish the task previously outlined.  MS tells me I need a custom script, no prexisting tools will solve my problem.
mentok74Author Commented:
Here is the script that ended up working for me:
 Const JOIN_DOMAIN             = 1
Const ACCT_CREATE             = 2
Const ACCT_DELETE             = 4
Const WIN9X_UPGRADE           = 16
Const JOIN_UNSECURE           = 64
Const DEFERRED_SPN_SET        = 256
Const INSTALL_INVOCATION      = 262144
strDomain   = "Domain"
strPassword = "Password"
strUser     = "User"
Set objNetwork = CreateObject("WScript.Network")
strComputer = objNetwork.ComputerName
Set objComputer = _
    GetObject("winmgmts:{impersonationLevel=Impersonate}!\\" & _
    strComputer & "\root\cimv2:Win32_ComputerSystem.Name='" _
    & strComputer & "'")
ReturnValue = objComputer.JoinDomainOrWorkGroup(strDomain, _
    strPassword, _
    strDomain & "\" & strUser, _
    NULL, _
PAQed with points refunded (500)

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Windows Vista

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