The sector attracted considerable attention in the late 2004 to early 2005 period from the struggle between Microsoft and Google.[5][6][7] According to market analysts, both companies were attempting to leverage their monopolies (of web browsers and search engines, respectively) to strengthen their dominance. Due to Google's complaint that users of Windows Vista cannot choose any competitor's desktop search program over the built-in one, an agreement was reached between US Justice Department and Microsoft that Windows Vista Service Pack 1 would enable users to choose between the built-in and other desktop search programs, and select which one is to be the default.[8] As of September 2011, Google ended life for Google Desktop.