The search engine in windows desktop search 3 . 0 is a windows service that is also used by applications such as microsoft office outlook 2007 and onenote 2007 to index application content and deliver instant results when searching within that application Windows desktop search 3 . 0中的搜寻引擎是一项windows服务， microsoft office outlook 2007和office onenote 2007等应用程式都使用此服务来编制应用程式内容的索引，并于应用程式内搜寻时传送结果。
