Dai-Ichi Kangyo Bank Limited, a Member of Mizuho Financial Group, Selects High Value Payment Processing Solution From ACI Worldwide.

Business Editors

OMAHA, Neb.--(BUSINESS WIRE)--April 9, 2001

ACI Worldwide (Nasdaq:TSAI), a leading international provider of enterprise e-payment solutions, announces the licensing of its MTS(TM) high-value payments processing solution to The Dai-Ichi Kangyo Bank Limited (DKB), a member of Mizuho Financial Group. Mizuho was formed as a result of the consolidation of the operations of The Dai-Ichi Kangyo Bank Limited, The Fuji Bank Limited, and The Industrial Bank of Japan Limited and is the world's largest bank.

The MTS high-value payment solution will initially be used by DKB - New York for corporate e-payments and settlement, and by Mizuho Corporate Bank- New York when it is legally formed on April 1, 2002.

ACI's MTS software will provide DKB and Mizuho with high-volume, mission-critical corporate e-payment processing, and will employ enhanced routing logic to maximize the bank's ability to accomplish straight-through processing. The product combines proven reliability with scalability and exceptional flexibility, designed to help customers optimize their corporate e-payment processing environments. MTS is an integrated payments solution for domestic and international funds transfer.

MTS operates on IBM RS/6000 servers and is a member of ACI's PaymentWare(TM) family of solutions designed to meet the messaging and payment processing needs of the corporate banking industry.

About ACI Worldwide

ACI Worldwide (Nasdaq:TSAI) helps the world move money and information. Every minute of every day, financial institutions, retailers and e-payment processors rely on ACI solutions to manage payments and information. As a leading international provider of e-commerce and payment solutions, ACI maintains operations in the Americas, Europe/Middle East/Africa and Asia/Pacific. More than 2,400 customers in 78 countries use ACI distributed solutions. Visit ACI Worldwide on the Internet at www.aciworldwide.com.

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