Architecture of Indexing Service

Note  Indexing Service is no longer supported as of Windows XP and is unavailable for use as of Windows 8. Instead, use Windows Search for client side search and Microsoft Search Server Express for server side search.

The architecture of Indexing Service is designed around documents. It gathers and filters documents and then indexes the resulting words and properties from the documents into a catalog. Concurrently, Indexing Service processes queries for specified words and properties and then returns references to the documents in the catalog that contain the specified items.

This section illustrates the architecture of Indexing Service by describing the characteristics of documents; the components of Indexing Service that perform indexing on and querying of documents; and the flow of information from documents through the components of Indexing Service. The section consists of the following topics.