Each Search object implements an interface and this section briefly describes each Search interface, including how to create or access an instance of each object. Except for the CGatherNotify COM class, you must first create an instance of the SearchAdmin COM class to create or access other Search objects.
The following table briefly describes the Search interfaces.
| Interface | Description |
| IBuildCatalog | Manages a catalog definition. |
| IBuildCatalogs | Manages catalog definitions (collection of IBuildCatalog objects). |
| IBuildServer | Manages catalog definitions (through the IBuildCatalogs interface) and catalog build server properties. |
| ICatalogProperties | The properties of a catalog. |
| ICatalogSearchServerList | Manages information about Search hosts (collection of IIndexDs objects) to which a catalog (ISearchCatalog object) is propagated. |
| IColumn | Information about documents that Search indexes or retrieves while crawling. |
| IColumns | Manages schema columns (collection of IColumn objects) of information about documents that Search indexes or retrieves while crawling. |
| IExtension | Specifies a file extension that Search crawls or avoids when building a catalog. |
| IExtensions | Manages file extensions (collection of IExtension objects) that Search crawls or avoids when building a catalog. |
| IGatherLog | Manages a catalog build server log containing the names of the documents that Search successfully or unsuccessfully crawled, or avoided, while building a catalog. |
| IGatherLogs | Manages catalog build server logs (collection of IGatherLog objects) containing the names of the documents that Search successfully or unsuccessfully crawled, or avoided, while building a catalog. |
| IGatherNotify | Used to notify Search that content has changed and that a catalog should be updated. |
| IIndexDs | Manages information about a Search host where Search propagates a catalog. |
| IMapping | Specifies how documents are accessed when crawling (the crawler access location) and how documents are displayed to site visitors when searching (the display location). |
| IMappings | Manages access-display mappings (collection of IMapping objects) that specify how documents are accessed when crawling (the crawler access location) and how documents are displayed to site visitors when searching (the display location). |
| IProtocol | The properties of a protocol that Search crawls or avoids when crawling. |
| IProtocols | Manages protocols (collection of IProtocol objects) that Search crawls or avoids when crawling. |
| ISearchAdmin | Provides properties to access other Search interface objects on a specified host. |
| ISearchCatalog | Manages a searchable catalog. |
| ISearchCatalogs | Manages catalogs (collection of ISearchCatalog objects) that can be searched. |
| ISearchSchema | Manages the properties (through the IColumns interface) and noise words (through the IStoplists interface) used to control what information is stored in a catalog. |
| ISearchServer | Manages catalogs (through the ISearchCatalogs interface) and search server properties. |
| IServer | How frequently Search is allowed to access a site. |
| IServers | Manages site hit frequency rules (collection of IServer objects) that specify how frequently Search is allowed to access a site. |
| ISitePath | Manages a path that Search crawls or avoids on a site. |
| ISitePaths | Manages site path rules (collection of ISitePath objects) that tell Search whether to crawl or avoid certain paths. |
| ISiteRestriction | Manages site that Search crawls or avoids, that may be configured with a content access account, and where Search crawls or avoids certain paths. |
| ISiteRestrictions | Manages site rules (collection of ISiteRestriction objects) that tell Search whether to crawl or avoid certain sites. |
| IStartPage | Manages a location where Search starts crawling a site. |
| IStartPages | Manages start addresses (collection of IStartPage objects) where Search starts crawling. |
| IStoplist | Manages a file containing noise words that Search ignores when building a catalog. |
| IStoplists | Manages noise word files (collection of IStoplist objects) containing words that Search ignores when building a catalog. |