AutoStopLimit 

Set to a non-zero value to make the search automatically stop when this many documents were found.  

BooleanConditions 

Additional boolean conditions that a document must meet to be retrieved in a search.  

FieldWeights 

Specify a relevance weight for hits that occur in listed fields (example: Subject:10,HtmlTitle:20)  

FileConditions 

File conditions that a document must meet to be retrieved in a search.  

FileCount 

After a search, contains the number of files retrieved (this is the total number of documents matched, regardless of the MaxFilesToRetrieve setting).  

Fuzziness 

If non-zero, the engine will match words that are close to but not identical to a search term.  

HitCount 

After a search, contains the number of hits in all files retrieved.  

MaxFilesToRetrieve 

Limit the maximum size of search results to a specified number of files.  

Request 

What to search for.  

Results 

Returns the results of the search.  

ResultsAsFilter 

A SearchFilter with all matching documents selected  

SearchFlags 

Flags controlling various search options.  

StatusHandler 

Object to receive callback notifications when documents are found.  

TimeoutSeconds 

Set to a non-zero value to force the search to halt after a specified time.  

UnindexedSearchFlags 

Flags controlling various search options.  

WantResultsAsFilter 

If set to true before a search, after the search ResultsAsFilter will contain a SearchFilter with all of the documents retrieved in this search.