Microsoft is launching the beta version of Windows Live Search, which will eventually become its only search tool.
The Windows Live platform, announced last year, combines e-mail, blogging, instant messaging, and other services.
Windows Live forms part of Microsoft’s strategy of offering users a wider range of on-demand web services.
In the future, the established MSN portal will instead focus on content and media services.
Windows Live Search has new capabilities such as image search, news search, and local search.
Microsoft has also unveiled a beta version of its Windows Live Toolbar, which allows users to search from any web page using Windows Live Search.