This update is no longer available. To fix the issues that are described in this article, install the latest Microsoft Office update from the following Microsoft Learn article:
Latest updates for versions of Office that use Windows Installer (MSI)
Microsoft SharePoint Foundation 2010 Client Object Model Redistributable Service Pack 1 (SP1) provides the latest updates for SharePoint Foundation 2010 Client Object Model Redistributable. This service pack includes two main categories of fixes:
Previously unreleased fixes that were made specifically for this service pack. In addition to general product fixes, these fixes include improvements in stability, performance, and in security.
All the public updates that were released through June 2011, and all the cumulative updates that were released through April 2011.