Windows Search Indexing
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 | How the System Index works |
| Overview of file types |
How the System Index works
Maintain a record of any document or application on your PC, and the contents found within those items, using the Windows Search system level index. This supports indexing for over 200 common file types out of the box and allows users to instantly find almost any document—including e-mail messages, calendar events, contacts, and media files—stored on their PC. All they have to remember is a filename, keyword, tag, or even text found within the file or e-mail itself.
The system index must complete an initial scan of your PC, and as new files and e-mail messages arrive, they are indexed when the PC is idle—becoming searchable shortly thereafter. Following the initial scan, the software then updates the index and continually monitors the system for changes. Subsequent scans for new files or e-mail messages require a fraction of the time and PC resources to keep the index up to date.
By default, Windows Search indexes only the contents of each user's "Documents" and "Favorites" folders, the "Public" folder, and the default mail store on their PC. With administrator privileges, users can configure the system index to include other folders or volumes on the same PC, include specific network folders and e-mail accounts, or include or exclude specific file formats. The IT administrator can also modify these and other settings using Group Policy. To learn more, go to the Windows Search 4.0 Administrator's Guide.
With regards to security, access to each piece of the index is protected by an access control list which corresponds to the access permissions on the data indexed. The Windows Search index is also obfuscated so that it is not easily readable if someone tries to open the index file. In addition, at no time are the contents of the system index or user information sent to Microsoft or other third parties. User information is held to the highest levels of security and privacy. Lastly, while Windows Search 4.0 supports the indexing of encrypted files that users have permission to access, encrypted files are not made available in search results from remote (PC-to-PC) search.
Overview of file types
Windows Search will search all content in the most commonly used file types—including text files, Office Word documents, Office Excel spreadsheets, Office Outlook, Windows Mail, and Outlook Express items, and Web pages. PDFs can also be searched with the installation of a PDF IFilter. For more information on file types, please review the Searchable File Typespage.
Note: To search Outlook e-mail messages, appointments, and contacts you must have Outlook 2003 or later installed. The system indexes Outlook e-mail while Outlook is running.
Labels: SEARCH
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