Hi Pilot,
That .cab file is one that holds 33 fonts for MS Office 2003. If it is on your Office 2003 product CD, but you're getting a .cab
file error it can be a sign that the Office Local Installation Source (LIS) (basically files extracted from the CD to usually keep
you from needing the CD <g>) has become corrupted or gone missing.
Somtimes you can resolve it by finding the 'CD image' that the OEM may have placed on your hard drive to install from
http://support.microsoft.com/kb/896866/en-us?FR=1
In others, copying the Office 2003 CD to a new folder on your PC and installing from there can help, but if Office was already
installed and if you can't complete a repair/reinstall from the Microsoft Office 2003 listing in Add/Remove Programs in the Windows
control panel then you may need to delete then rebuild the LIS stored in the hidden folder, \MSOcache using the LIS-Tool and
step-by-step instructions available from this link.
http://support.microsoft.com/kb/875556/en-us?FR=1
One of the causes of this can be from using 'registry' or 'pc cleanup' utilities that sometimes break more than they fix.
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My computer came with a trial office student and teachers version which as I recall was good for 80 days. Prior to the time
running out I paid to keep the program which included a back up disk. I was given the product key when I paid Microsoft online. I
did not uninstall as HP had loading this program at the factory which I assumed was the complete edition. >>