Microsoft has released Windows Desktop Search 3.0 RTW and it’s available for download here (XP x86, other versions are available at Microsoft Download Center). I have been using the beta 2 extensively since the release, and the betas before that. It’s a great desktop search application and integrates incredibly nice with the upcoming Office 2007. Finding e-mails in Outlook 2007, documents on your harddrive or captured images in OneNote 2007 is really easy and fast. Give it a try!
Windows Desktop Search is the desktop part of the Microsoft search commitment. The other two main parts are the Live Search, for searching the Internet, and SharePoint Server 2007 for the enterprise search.
Windows Live Gallery provides you with a number of great plugins for WDS, you can find plugins for Notes, .MSG files and others here.