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.


The IsapiDefaultCatalogDirectory entry sets the default Indexing Service catalog name as it would be entered in the CiCatalog entry of an .idq file.


Type: REG_SZ
Default: "System"



The value of the IsapiDefaultCatalogDirectory entry is also used by the Query object when the Query.Catalog property is not set.

The value of an identically named entry under the Catalog subkey for a specific catalog cannot override the value of this entry.

Main Registry Entries