Description of the 2007 Office system update: April 13, 2010


Microsoft has released an update for the 2007 Microsoft Office system. This update fixes an issue in which some add-ins are not loaded within the 2007 Office system when the Microsoft .NET Framework 2.0 common language runtime (CLR) is not present. Additionally, this update contains stability and performance improvements.

More Information

Update details

Installation details

How to obtain and install the update

The following file is available for download from the Microsoft Download Center:

Download Download the update package now.

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.

How to determine whether the update is installed

This update contains files that have the versions that are listed in the following table.

File nameFile versionFile sizeDateTimePlatform

To determine the version of the files that are installed on the computer, follow these steps, as appropriate for the operating system that your computer is running.

Windows Vista
  1. Click StartStart Button , and then click Search.
  2. Click Advanced Search.
  3. In the Location box, click Local Hard Drives.
  4. In the Name box, type
    Mso.dll, and then click
  5. In the list of files, right-click Mso.dll, and then click Properties.
  6. On the General tab, note the properties of the Mso.dll file that is installed on the computer.
Windows XP
  1. Start Search Companion. To do this, click
    Start, and then click Search.

    Note If Windows Desktop Search starts, click Click here to use Search Companion.
  2. In the Search Results window, click All files and folders in the Search Companion pane.
  3. In the All or part of the file name box, type Mso.dll, and then click
  4. In the list of files, right-click Mso.dll, and then click Properties.
  5. On the General tab and on the
    Version tab, note the properties of the Mso.dll file that is installed on the computer.

Information for administrators about .msp files

This update consists of a full-file Microsoft Windows Installer (.msp) file. The .msp file is packaged in a self-extracting executable file. The following .msp file is distributed in this update:

For information about how to distribute product updates for the 2007 Office system, visit the following Microsoft Web site:
The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office. For more information about the Office System TechCenter, visit the following Microsoft Web site:


The .NET Framework provides a run-time environment called the common language runtime (CLR). The CLR runs the code and provides services that make the development process easier. For more information about the CLR, visit the following Microsoft Developer Network (MSDN) Web site:

Article ID: 981715 - Last Review: Oct 9, 2011 - Revision: 1

Microsoft Office Basic 2007, Microsoft Office Enterprise 2007, Microsoft Office Home and Student 2007, Microsoft Office Professional Plus 2007, Microsoft Office Small Business 2007, Microsoft Office Standard 2007, Microsoft Office Ultimate 2007