Earlier blog entries explained how to add Sharepoint Search to Windows Desktop Search and add Sharepoint Search to Internet Explorer 7.0

Here are the instructions to add Sharepoint Search directly into Windows Vista Desktop.

• Click on Start Button
• Type Gpedit.msc, Group Policy Editor will open (Click Allow if prompted for elevated privileges)
• Navigate down and expand the following tree nodes: User Configuration - Administrative Templates - Windows Components - Instant Search
• Double Click "Custom Instant Search Internet Search Provider"
• Choose to "Enable"
• Enter :
  Search MSWeb for String
  http://msw/searchcenter/pages/search_results.aspx?s=Intranet&k=%w for URL
• Click OK
• Close Group Policy Editor
• Reboot or run the following command in a command window as Administrator - Gpupdate /force

Option: You can choose to issue searches to your MySite instead of MSWeb. This can be done by performing using a search string such as
http://msw/searchcenter/pages/search_results.aspx?s=Intranet&k=%w&u=http://my/sites/mharriso

Replace URLs that reference you own machines.

Vista currently only supports a single search scope.