contextReference - the context of the search. This reference will not be returned as part of the results.
namePattern - the name of the file or folder ro search for. Wildcard expressions are excepted.
filter - indicates the type of the file system info that should be returned in the search results. This parameter is optional, if it is not specified the no filtering of search results will take place.
includeSubFolders - true to serach the entire hierarchy below the search context