How to obtain and install the service packs
Method 1: Microsoft Update (recommended)
To download the service pack from Microsoft Update, visit the following Microsoft website:
Microsoft Update Enrolling in Microsoft Update is the recommended way to update products to SP3. Microsoft Update will detect which products that you have installed, and then apply all updates to the products.
Method 2: Download the SP3 package from Microsoft Download Center The following files are available for download from the Microsoft Download Center:
Download the Japanese Office InterConnect 2007 SP3 package nowNOTE: This package is available only in Japanese.
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Known issues and behavior changes2591067 Known issues that you may experience when you install the 2007 Office suite SP3 and Windows SharePoint Services 3.0 SP3
Technical informationFor more information about this service pack, including a list of the affected files, click the following article number to view the article in the Microsoft Knowledge Base:
2591039 Technical details about the 2007 Office system SP3 releases
Service pack removal
2007 Microsoft Office Service Pack 3 supports removal of client updates by using both the command line and the Microsoft Service Pack Uninstall Tool for the 2007 Microsoft Office suite. The Service Pack Uninstall Tool is available as a separate download. For more information about this tool, click the following article number to view the article in the Microsoft Knowledge Base:
954914 Microsoft Service Pack Uninstall Tool for the 2007 Microsoft Office suite