Difference between revisions of "Microsoft KB Archive/247561"

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Latest revision as of 13:50, 21 July 2020

Knowledge Base

How to Edit Index Server Noise-Word Lists

Article ID: 247561

Article Last Modified on 11/1/2006


  • Microsoft Index Server 2.0

This article was previously published under Q247561


This article describes how to edit noise-word list files and how to activate the changes.


During the index and query process, Index Server uses noise-word list files for each language to filter the content provided by the wordbreaker and stemmer. This noise-word list includes words and characters that Index Server will not store in the catalog. This prevents Index Server from storing useless information and wasting disk space. To modify the noise-word list:

  1. Select the correct noise-word list file for the language you want to change.

    For each installed language, you can find the corresponding noise-word list file in the registry under:

    HKLM\System\CurrentControlSet\Control\ContentIndex\Language\language\NoiseFile REG_SZ

    The noise-word list files are stored in the %SystemRoot%\System32 folder.

    For example, the English_US noise-word file is stored as %SystemRoot%\System32\Noise.enu.

  2. Open the noise-word file with any text editor (such as Notepad) and edit the content. Save your changes.
  3. Stop and start the ContentIndex service for the changes to take effect. To stop and start the service, use Service Manager or the following command lines:

    net stop "content index"
    net start "content index"

Note that all the documents must be indexed again if they will be processed by the noise-word file you have changed. For example, assume that you remove a word from the Noise.enu file and that there is a document that has the EN-US language settings and contains this word. If you query the catalog for this word, you do not receive the document in the results. This occurs because the data that is stored in the catalog for this document was built with the old noise-word list. To receive the correct results, the document must be processed again using the new noise-word list.

Keywords: kbenv kbhowto KB247561