results by Bing
    Did you mean: web services
    ... would be to get the FolderID and start the search straight from there $RootFolderID = new-object Microsoft.Exchange.WebServices.Data.FolderId ...
    ... ($Service -eq $null) { $Service = new-object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.ExchangeVersion]:: ...
    This sample demonstrates doing EWS Autodiscover processes using the Exchange Managed API and raw code. It handles callbacks for doing redirection and ...
    Contributed a question Adding Reference to Microsoft.Exchange.WebServices.Data that has at least 5 helpful votes in the Exchange Development Forum.