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Indexing Text-Type and Value-Type Properties

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.

Indexing Service indexes all text-type properties using their associated, unformatted text. The unformatted text undergoes word breaking and noise-word removal before eventually being merged into the master index of the catalog. Text-type properties are entered as words in the index along with their name, so that queries for text selected by property name are possible.

Indexing Service indexes value-type properties according to their data type identifiers.

  • Properties with a textual data type are indexed identically to text-type properties. Textual data type identifiers are: VT_LPSTR, VT_LPWSTR, VT_BSTR, and combinations of these made by a logical OR operation with VT_VECTOR.
  • Properties with a non-textual data type are indexed similarly to text-type properties using the appropriate data type and the data value of the property. Non-textual data type identifiers include: VT_I4, VT_I8, VT_R8, VT_DATE, and others.

 

 

Build date: 9/10/2012

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