SAN JOSE, Calif. - Visto Corp., a maker of mobile e-mail technology, has sued Microsoft Corp. for allegedly infringing on three of its patents related to how information is handled between servers and handheld devices such as cellular phones.

Time Warner Inc. ended talks with Microsoft Corp. Friday and entered into exclusive negotiations with Google Inc. over a $1 billion investment and a broader advertising partnership with America Online, executives close to the talks said.

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