Windows Indexing service is a in Windows NT, Windows 2000 and other Windows NT family of operating systems that allows searching on corporate computer networks. The Indexing service is an operating system level service which maintains an index of most files on a computer and updates them without the need of intervention by the user.
Once the Indexing service is turned ON and has built its index it can be searched in three ways. The Indexing service is a base service of Microsoft Windows which extracts content from files and constructs an indexed catalog to facilitate efficient searching. Both text and property information from files on the local host and on remote and networked hosts can be extracted using the Indexing service.
The Indexing service extracts the content by filtering. The filter components that understand a file format such as multi language features. The IFilter interface is implemented as the filter component. The filter provide methods for reading a file to extract text and properties. The extracted information is merged by the Indexing service into catalogs of indexes for efficient searches. Indexing is the overall process of filtering, creating index entries and merging into catalogs. The process terminates after the final step of creation of catalogs which has the master index storing words and their
locations.
Windows 2000 and Windows XP include basic facilities for querying the Indexing Service catalog and for managing the state and properties of Indexing Service.
Facilities include:
- The Indexing Service snap-in for the Microsoft Management Console (MMC) provides the means to start, stop, and pause Indexing Service, and to administer many of its properties, such as those defining its catalogs.
- When Indexing Service is running, Start/Search/For Files or Folders uses the Indexing Service catalog.
Windows XP and Other Later Versions
Indexing Service 3.0 includes the following new features in Windows XP and later:
- Media property sets that enable you to query for media properties in queries that use the OLE DB Provide for Indexing Service. The media property sets include properties for audio, video, music, image, and digital rights management. For more information about media properties and property sets

There are few web hosting firms that do provide support for Windows Indexing service.








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