digital signature does not validate

I'm fighting a pesky error, that I believe is in XP. System is XP Pro SP3
with all updates.

Office 2003 suite is currently installed. I have a retail boxed CD of Office
2007 Home and Student. The first thing that appears when it is loaded is a
message: "D:\HomeStudentr.WW\OSETUP.DLL digital signature does not validate
or is not present." Click OK and nothing more is done/seen.

There are many reports of this problem in the Office 2007 sites, most
replies focus on the CD. It is NOT the CD. It works fine on another computer,
also I get the same error with this computer and another CD of Office 2007
HSE. It is not the CD reader either. Following some suggestions, I used
WinZip to extract the files and put them on a clean USB HDD. Same thing
happens there, too. It is definitely a software problem in XP or whatever
install package Office is using.

If the software in the system is corrupted somehow, what is the fix?
Might it be a missing root Certificate Authority?
Miss-behavior by a 3rd party firewall (it is using CA)?

Many would appreciate a real solution to this problem.

David
Fri Jun 27 11:58:15 PDT 2008

This group is for Windows Media Center, repost to a more appropriate group
such as one of the Office groups or xp.general

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"Gordie" <Gordie@discussions.microsoft.com> wrote in message
news:9A13E90F-3993-4EBA-BD0D-4B87F4C9B586@microsoft.com...
> I'm fighting a pesky error, that I believe is in XP. System is XP Pro SP3
> with all updates.
>
> Office 2003 suite is currently installed. I have a retail boxed CD of
> Office
> 2007 Home and Student. The first thing that appears when it is loaded is a
> message: "D:\HomeStudentr.WW\OSETUP.DLL digital signature does not
> validate
> or is not present." Click OK and nothing more is done/seen.
>
> There are many reports of this problem in the Office 2007 sites, most
> replies focus on the CD. It is NOT the CD. It works fine on another
> computer,
> also I get the same error with this computer and another CD of Office 2007
> HSE. It is not the CD reader either. Following some suggestions, I used
> WinZip to extract the files and put them on a clean USB HDD. Same thing
> happens there, too. It is definitely a software problem in XP or whatever
> install package Office is using.
>
> If the software in the system is corrupted somehow, what is the fix?
> Might it be a missing root Certificate Authority?
> Miss-behavior by a 3rd party firewall (it is using CA)?
>
> Many would appreciate a real solution to this problem.