Article ID: 924614 - View products that this article applies to.
For a Microsoft Office 2003 and a Microsoft Office XP version of this article, see 822238
This article describes how the repair process in the 2007 Microsoft Office system programs works. Additionally, this article lists step-by-step methods that describe how you can use the repair process in the 2007 Office programs.
The 2007 Office programs take full advantage of the self-repairing features that are offered by Microsoft Windows Installer. If a resource that you must have to start a 2007 Office program is missing, such as a file or a registry key, the Windows Installer detects the missing resource and repairs the program.
Components and featuresThe repair process of Windows Installer is composed of two mechanisms. These mechanisms are components and features.
ComponentsComponents are the smallest and most fundamental block. Components may include a collection of files, of registry keys, and of other resources that are installed or uninstalled as a unit.
One of the resources in a component can be designated as the keypath for the component. Typically, a file is chosen as the keypath. However, the keypath can also be a registry value.
The keypath represents the path of the selected component. When a program requests a component's path, Windows Installer returns the path of the keypath resource.
The keypath also provides verification that the component is installed correctly. If the keypath resource is missing, Windows Installer treats the whole component as broken.
FeaturesFeatures are the specific pieces of a program that you can decide to install. Features typically represent the functional features of the program.
Essentially, a feature is a grouping of components. When you perform a custom installation, the items that are listed in the Advanced Customization dialog box are the features for Office and for the various Office programs.
Dynamic run-time repairWindows Installer enables the dynamic repair of a program exactly as it enables the installation of features on first use. When a program is started, Windows Installer verifies that each component is installed correctly.
As mentioned in the "Components and features" section, the keypath is used to determine whether a component is broken or missing. If the keypath resource is missing, Windows Installer automatically reinstalls the component or the components that are broken or missing.
If the source files can be accessed, a Windows Installer dialog box may briefly appear during the repair process. Then, the program finishes starting. For more information about Windows Installer, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/310598/ )Overview of the Windows Installer technology
On-demand detect and repairTo run the Detect and Repair feature in your 2007 Office programs, use one of the following methods, as appropriate for your situation.
For 2007 Office programs that use menus
For 2007 Office programs that use the Ribbon
Article ID: 924614 - Last Review: September 12, 2011 - Revision: 2.0