Error: Code 646 after several attempts installation 5 Microsoft Office updates.

I am running Windows Vista (32-bit) Home Premium Edition Service Pack 2 on a Dell Inspiron 530 s PC.
Specific updates I have experienced the problem are:

 Update of security for Microsoft Office 2003 (KB975051) 492 KB
 
Update of security for Microsoft Office Excel 2003 (KB973475) 4.9 MB

Update of security for Microsoft Office Word 2003 (KB973443) 5.6 MB

Update for Microsoft Office 2003 (KB978551) 466 KB
 
Update for the filter of junk mail to Outlook 2003 (KB977840) 3.4 MB

I had my computer in "safe" mode during the installation. I tried disabling my firewall temporarily, then I tried with all the protections that are temporarily off.
* I really don't understand the reasoning for me required updates for Microsoft Office 2003 and related features... I have not installed it in my computer, nor use any product of Outlook. I guess maybe it's to cover items that can be received by e-mail perhaps as an attachment. ??
Thank you in advance for your help,

-o00o - X / {'' '(in) °' °} / X - o00o -.

Have you tried to download and install the office updates manually?

IE: http://office.microsoft.com/en-au/downloads/results.aspx?qu=KB975051&av=DCT000
http://search.Microsoft.com/results.aspx?mkt=en-us&setlang=en-us&q=KB973443
TaurArian [MVP] 2005-2010 - Update Services

Tags: Windows

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