In its latest bid to catch up with rivals Google Inc. and Yahoo Inc., Microsoft Corp. is launching a revamped Internet search engine it says will help computer users find information faster, view it more easily and organize it better.

Debuting in test form Wednesday, Windows Live Search is Microsoft's latest move in a major strategy shift that has the world's largest software company focusing more heavily on Internet-based software and services.

Windows Live Search will power queries on live.com, Microsoft's Windows Live Web site, beginning Wednesday. Once the technology has been fully tested, Windows Live Search will replace the existing search engine that powers MSN.com.

"A lot of people think, 'Hey, ... Didn't Google become the popular search engine? And don't they just do a great job? And there's no room for improvement."' Mehdi said. Once people get a feel for Windows Live Search, Mehdi said, "They're going to say, 'Holy cow, I had no idea that search could get this much better!"'

The new search engine includes features such as support for tabbed Web browsing, which lets people keep several search panes open in a single window. Microsoft said other features will include:

• A search slider bar that offers previews of data in various forms, perhaps just the Internet address of a Web site, or maybe a snippet of text. As the slider is adjusted, more or less information appears.
• A "smart scroll" function that displays all search results at once rather than on separate pages.
• Various ways to view pictures, say, as small "thumbnail" shots or full-sized images, without leaving the search page.
• An ability for users to save their search parameters as macros that can be run to perform the same search in the future. Microsoft said people will also be able to publish their search macros so people with similar interests can use them.