http://blogs.msdn.com/jonasbar/archive/2007/03/13/character-based-versus-word-based-search-or-searching-with-wildcards-on-windows-vista.aspxThere is a major difference between file search on Windows XP and desktop search on Windows Vista (or on Windows XP with Windows Desktop Search [WDS] installed) that has perhaps not been made sufficiently clear. On Windows XP search is character based.en-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/jonasbar/archive/2007/03/13/character-based-versus-word-based-search-or-searching-with-wildcards-on-windows-vista.aspx#4855165Mon, 10 Sep 2007 20:47:59 GMT91d46819-8472-40ad-a661-2c78acb4018c:4855165Jonas Barklund's WebLog<p>Say you have a document containing the number 1234567890 (it might be a part number or an invoice number)</p>