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You receive the "A required installation file SKU0A4.CAB could not be found" error message when you try to update Office 2003 programs

Support for Office 2003 has ended

Microsoft ended support for Office 2003 on April 8, 2014. This change has affected your software updates and security options. Learn what this means for you and how to stay protected.

SYMPTOMS
If the Microsoft Office 2003 Web Components are installed on your computer when you try to update your Microsoft Office 2003 programs from the Microsoft Office Update Web site or from the Microsoft Download Center, you receive the following error message:
Installation Error: File not Found

A required installation file SKU0A4.CAB could not be found.

Original Installation Source Required:

Your Microsoft Office 2003 Web Components installation source has been corrupted or removed. You will need to download Microsoft Office 2003 Web Components again or reinstall from your original media.
If you try to install the update from the Office Update Web site, you also receive the following message in addition to the error message:
Installation Unsuccessful.
If you try to install the update from the Microsoft Download Center, you also receive the following message in addition to the error message:
The update cannot be applied.
CAUSE
This behavior may occur when one of the following conditions is true:
  • The Office 2003 Web Components source files are missing in the following folder on your computer:
    C:\MSOCache\All Users\90A40409-6000-11D3-8CFE-0150048383C9
  • The MSOCache folder has been deleted from your computer.
WORKAROUND
To work around this behavior, use one of the following methods depending on your situation.

Method 1: If you installed the Office 2003 Web Components from the Microsoft Download Center

If you installed the Office 2003 Web Components from the Microsoft Download Center, you cannot provide the original installation source. To work around this behavior, follow these steps:
  1. Remove the Office 2003 Web Components. To do this, follow these steps:
    1. Quit your Office 2003 programs.
    2. Click Start, and then click Control Panel.
    3. Click Add or Remove Programs.
    4. In the Currently installed programs list, click Microsoft Office 2003, and then click Change.
    5. Click Add or Remove Features, and then click Next.
    6. Click to select the Choose advanced customization of applications check box, and then click Next.
    7. Expland Office Shared Features.
    8. Click the icon for Office 2003 Web Components, and then click Not Available.
    9. Click Update.
  2. Install the Office 2003 Web Components from the Microsoft Download Center. To do this, visit the following Microsoft Web site:
  3. Install the Office 2003 update.

Method 2: If you installed the Office 2003 Web Components from the Office 2003 CD-ROM

If you installed the Office 2003 Web Components from the Office 2003 CD-ROM, insert your original Office 2003 program CD that you used to install Office 2003, and then click OK at the time that you receive the error message that is mentioned in the "Symptoms" section.
MORE INFORMATION
When you install an Office 2003 program, the Setup program copies the source files from the Office 2003 program to the following folder on an available local hard disk drive unless there is low disk space:
drive:\MSOCache\All Users\90000409-6000-11D3-8CFE-0150048383C9


For additional information about the Local Install Source feature, click the following article number to view the article in the Microsoft Knowledge Base:
830168 Frequently asked questions about the local install source feature in Office 2003
For additional information about a similar problem, click the following article number to view the article in the Microsoft Knowledge Base:
875556 "Installation Error: File not Found" error message when you try to update Office 2003 programs from the Office Update Web site
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Article ID: 884824 - Last Review: 08/29/2006 21:10:47 - Revision: 1.7

  • Microsoft Office Professional Edition 2003
  • Microsoft Office Excel 2003
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  • Microsoft Office Outlook 2003
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  • Microsoft Office Publisher 2003
  • Microsoft Office Word 2003
  • Microsoft Office Standard Edition 2003
  • Microsoft Office Student and Teachers Edition 2003
  • Microsoft Office Small Business Edition 2003
  • Microsoft Office Basic Edition 2003
  • Microsoft Office Access 2003
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