Content and Property-Value Queries
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 considers a document to be an assemblage of properties, which are either text-type or value-type. (See Property Types for a description of the types of properties.) Most queries of text-type properties involve the Contents property, so these queries are often called "content queries." Queries of value-type properties are similarly often called "property-value queries."
Queries involving text-type properties or textual value-type properties are limited in comparison to queries of nontextual value-type properties. For example, queries can contain Boolean operators when they involve either type of property, but queries can contain relational operators only when they involve value-type properties. (See Property Querying for a description of properties and queries.)