You receive an "Installation Error: File not Found" or "Error 0x51F" error message when you try to update Office 2003 programs from the Office Update Web site or the Office Download Center

When you try to update a Microsoft Office 2003 program from Microsoft Update Web site or for AutoUpdate, you receive the following error message: Similarly, when you try to update a Microsoft Office 2003 program from the Microsoft Office Download Center or from Microsoft Update, you receive the following error message: Note The file name is frequently, but not limited to, SKUxxx.cab, where xxx corresponds to the second, third, and fourth numbers of the Product Code.
For more information about Product Code numbering in Office 2003, click the following article number to view the article in the Microsoft Knowledge Base: Note To look for updates for Office 2003, visit the following Microsoft Web site:

This problem may occur if one of the following conditions is true:

• Source files in the C:\MSOCache\All Users\90000409-6000-11D3-8CFE-0150048383C9 folder are missing.
• The MSOCache folder has been deleted.
• There is a problem with the Local Installation Source (LIS) for the program.

To work around this problem, use one of the methods in this section.

Note Regardless of the method that you use to work around this problem, you can resolve this problem if you have the Office 2003 program CD. To permanently resolve this problem, use the Local Installation Source tool to repair the Local Installation Source. For more information about how to use the Local Installation Source tool, see the "Use the Local Installation Source tool" section.

Method 1: Provide the original source that you used to install the program the first time

When you receive the error message that is mentioned in the "Symptoms" section, perform one of the following steps to provide the original source that you used to install the program:

• Insert the original Office 2003 program CD that you used to install Office 2003, and then click OK.
• Click Browse, locate the Office 2003 program installation folder on the network, and then click OK.

Although these steps resolve the requirement for the installation source files and allow for the update to continue, this problem may occur the next time that you try to update an Office 2003 program from the Office Update Web site.

Note If the steps listed in Method 1 do not work, it is possible that the files in the MSOCache\All Users\download code folder do not match the files on the CD that you have provided. Check to make sure that the CD that you inserted matches the product that is being requested. For example, the installed product may be Microsoft Office Professional Edition 2003 and the CD contains files for Microsoft Office Professional Enterprise Edition 2003. If this is the case, you must remove the Microsoft Office product, and then install the product again from the available CD.

Note Toshiba provides a compressed image of the OneNote CD on the "Toshiba Recovery and Applications / Drivers" DVD that is located in the following folder: There is a single file in this folder that is named the B21654A.exe file. To extract the B21654A.exe file follow these steps:

1. Double-click the B21654A.exe file.
   
   A Winzip Self Extractor alert dialog box appears with the following message:
   Microsoft Office OneNote 2003 W32 English OPK v. 11.5510.5606 Setup will start when the extraction is complete. Please restart your computer after the installation is completed.
2. Click OK.
   
   Another dialog box appears that provides several installation options.
3. To extract the files without installing Microsoft Office OneNote 2003, click to clear the When done unzipping open: SETUP.exe check box. By default, the files are extracted to the C:\OneNote2003.temp folder. If you want the files to be extracted to a different location, change the location.
4. Click Unzip.
5. When the extraction is complete, you receive the following Winzip Extractor dialog box:
   53 file(s) unzipped successfully
   Click OK.
6. Click Close to close the WinZip Self-Extractor - B21654A.exe dialog box.

When Office 2003 SP1 Update requests the location of a file, provide the location that contains the extracted files.

Method 2: Use Office Update

Microsoft Update is designed to install an update without user interaction. For example, if you use Microsoft Update, you do not have to provide the program CD. However, if you use Office Update, you are prompted for your program CD-ROM only if there is a problem with the Local Installation Source on the computer.

To have the Office Update Web site detect the required updates that you must install on your computer, visit the following Microsoft Web site:

Method 3: Use the Microsoft Download Center

You can use the Microsoft Download Center to download a full-file version of the update if the following conditions are true:

• You do not have access to the program CD.
• You experienced problems when installed the update because of a problem with the Local Installation Source.

To use the Microsoft Download Center, visit the following Microsoft Web site: To search for the update that you want to install, follow these steps:

1. If you know the name of the update that you want to install, type the name of the update in the Keywords (optional) box, and then click Go.
   
   
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   Alternatively, if you want to find the available updates for the product that you want to update, click the product in the product families list, and then click Go.
   
   
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2. Locate and then click the update that you want to install.
   
   
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3. Read the download Web page for the update to determine whether a full-file version of the update is available. If a full-file version of the update is available, click the full-file version of the update, and then follow the instructions to download and to install the update.
   
   
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When you install an Office 2003 program, the Setup program copies the source files of the Office 2003 program to the following folder on an available local hard disk drive unless a low disk space issue prevents this feature:

How to use the Local Installation Source tool

1. Quit all Office 2003 programs.
2. Go to the following Microsoft Web site:
   http://www.microsoft.com/downloads/details.aspx?familyid=10FA7AA3-695B-42C3-9045-B812BA0FED3E (http://www.microsoft.com/downloads/details.aspx?familyid=10FA7AA3-695B-42C3-9045-B812BA0FED3E)
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3. Click Download.
   
   
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4. In the File Download dialog box, click Save.
   
   
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5. Select the folder in which you want to save the LISTool.exe file, and then click Save.
   
   
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6. Start Windows Explorer.
   
   
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7. Open the folder in which you downloaded the LISTool.exe file, and then double-click LISTool.exe.
   
   
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8. Type the full path of a folder, and then click OK.
   
   
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   Alternatively, click Browse to open the folder to which you want to extract the LISTool.exe file.
   
   
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If there is a problem with the Local Installation Source, you can use the Local Installation Source tool to try to resolve the issue.

To delete and disable the Local Installation Source for the program, follow these steps:

1. Open the folder to which you extracted the Local Installation Source tool, and then double-click the LISTool.exe file.
   
   
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2. Click Delete and disable LIS, and then click Next.
   
   
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3. Accept the End-User License Agreement, and then click Next.
   
   
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4. Click to select the check box for the program for which you want to disable Local Installation Source, and then click Next. For example, click to select the Microsoft Office Project Professional Edition 2003 check box.
   
   
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5. Click Delete.
   
   
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6. Click OK when you receive the following message:
   Microsoft Office Local Installation Source has been successfully deleted and disabled.
   
   
   
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To enable the Local Installation Source for the program, follow these steps.

Note You must have the program CD to complete these steps.

1. Locate your copy of the program CD.
2. Open the folder to which you extracted the Local Installation Source tool, and then double-click LISTool.exe.
   
   
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3. Click Enable LIS, and then click Next.
   
   
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4. Accept the End-User License Agreement, and then click Next.
   
   
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5. Click to select the check box for the program for which you want to enable Local Installation Source, and then click Next. For example, click to select the Microsoft Office Project Professional 2003 check box.
   
   
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6. Click Enable.
   
   
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7. Click OK when you receive the following message:
   Microsoft Office Local Installation Source has been successfully enabled
   
   
   
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For more information about the Local Install Source feature, click the following article number to view the article in the Microsoft Knowledge Base: The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.