Check you temp directory & find the msinstall.log (it starts with ms......log)
for the name of the file(s); get the file from the machines with the good
install & add it to the directory of the uninstallable machine.

At least, that's how I "fixed" a similar problem trying to install on winxp
when the install couldn't find the file for "upgrade" (ridiculus as it was a
office ultimate 2007 file). The real problem is that the install setup is
buggy.


On 2007-10-14, JuST Jen <JuST> wrote:
> When installing Office Ultimate 2007 on my Windows Vista Ultimate system, I
> get the following setup error message very soon after Setup is launched (and
> prior to asking for entry of the key):
>
> "Setup cannot continue because a required file is either corrupted or not
> available. run Setup again from original source disc or download location."
>
> I have already tried copying the CD to a system folder and running Setup
> from that location. I have also tried running Setup in Windows XP
> compatibility mode without success. My system has all updates installed for
> Windows Vista Ultimate. I am able to install other programs on this system
> from the same DVD/CD drive. And, Setup will launch from the CD on another
> system, and gets to the screen that asks for the key entry, so I do not
> believe the CD itself is bad.
>
> Any ideas?