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HP Extends Tender Offer for Mercury Interactive

PALO ALTO, Calif., Sept. 15, 2006

HP today extended its previously announced tender offer for all of the common stock of Mercury Interactive Corporation until midnight, New York City time, on September 28, 2006.

As of midnight, New York City time, on September 14, 2006, approximately 67.8 million shares had been tendered in and not withdrawn from the offer.

About HP

HP is a technology solutions provider to consumers, businesses and institutions globally. The company’s offerings span IT infrastructure, global services, business and home computing, and imaging and printing. For the four fiscal quarters ended July 31, 2006, HP revenue totaled $90.0 billion. More information about HP (NYSE, Nasdaq: HPQ) is available at http://www.hp.com.

Important information

THIS NEWS RELEASE IS FOR INFORMATIONAL PURPOSES ONLY AND IS NOT AN OFFER TO BUY OR THE SOLICITATION OF AN OFFER TO SELL ANY SECURITIES. THE SOLICITATION AND THE OFFER TO BUY SHARES OF MERCURY INTERACTIVE CORPORATION COMMON STOCK IS MADE ONLY PURSUANT TO AN OFFER TO PURCHASE AND RELATED MATERIALS THAT HP AND MARS LANDING CORPORATION FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 17, 2006. MERCURY INTERACTIVE CORPORATION STOCKHOLDERS AND OTHER INVESTORS SHOULD READ THESE MATERIALS CAREFULLY BECAUSE THEY CONTAIN IMPORTANT INFORMATION, INCLUDING THE TERMS AND CONDITIONS OF THE OFFER. MERCURY INTERACTIVE CORPORATION STOCKHOLDERS AND OTHER INVESTORS MAY OBTAIN COPIES OF THE OFFER TO PURCHASE AND RELATED DOCUMENTS WITHOUT CHARGE FROM THE SECURITIES AND EXCHANGE COMMISSION THROUGH THE COMMISSION’S WEBSITE AT WWW.SEC.GOV. MERCURY INTERACTIVE CORPORATION STOCKHOLDERS AND OTHER INVESTORS MAY ALSO OBTAIN COPIES OF THESE DOCUMENTS, WITHOUT CHARGE, FROM INNISFREE M&A INCORPORATED, THE INFORMATION AGENT FOR THE OFFER, AT +1 877 750 5838 OR BY EMAIL AT INFO@INNISFREEMA.COM, FROM MERRILL LYNCH & CO., THE DEALER MANAGER FOR THE OFFER, AT +1 877 653 2948, OR FROM HP. STOCKHOLDERS AND OTHER INVESTORS ARE URGED TO READ CAREFULLY THOSE MATERIALS PRIOR TO MAKING ANY DECISIONS WITH RESPECT TO THE OFFER.

© 2006 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. HP shall not be liable for technical or editorial errors or omissions contained herein.

About HP

HP Inc. creates technology that makes life better for everyone, everywhere. Through our portfolio of printers, PCs, mobile devices, solutions, and services, we engineer experiences that amaze. More information about HP Inc. is available at http://www.hp.com.