CREATIVE SOLUTIONS AND RIVET SOFTWARE ANNOUNCE PARTNERSHIP

Rivet's Dragon Tag and Dragon View Enhance XBRL Capabilities in CS Professional Suite

DEXTER, MI and DENVER-April 25, 2006 - Creative Solutions, a business of The Thomson Corporation (NYSE: TOC; TSX: TOC), and Rivet® Software, a leader in Financial Integrity Management™ and XBRL (Extensible Business Reporting Language) solutions, have partnered to provide Rivet's Dragon Tag™ and Dragon View™ XBRL applications to Thomson Creative Solutions customers. This partnership will significantly enhance the XBRL capabilities within Creative Solutions' CS Professional Suite.

"We are very excited about our partnership with Rivet Software because it allows us to further enhance our products to meet the needs of our customers," stated Teresa Mackintosh, Vice President of Marketing at Thomson Creative Solutions. "The advanced XBRL capabilities offered through Dragon Tag and Dragon View will provide our users with the most powerful and cost-effective solution to create and review XBRL documents."

"Our partnership with Thomson Creative Solutions helps further our commitment to providing accounting and finance professionals with the applications they need to make XBRL reporting both simple and cost-effective," said Robert Rohan, Executive Vice President at Rivet. "By allowing Creative Solutions customers to create and view XBRL documents within the familiar environment of Microsoft® Excel®, we hope to further drive XBRL adoption within the professional accountant and tax arenas as the primary solution for business and financial reporting."

XBRL is quickly becoming standard practice among tax and accounting professionals in order to meet strict regulatory and compliance requirements like Sarbanes Oxley and Basel II. The partnership between Thomson Creative Solutions and Rivet leverages the advanced XBRL creation and review functionality of Rivet's applications and the powerful features within the CS Professional Suite to provide the profession with a leading-edge XBRL solution to meet demanding reporting requirements.

"Because XBRL provides the most efficient means for financial reporting, it is beginning to be adopted by tax and accounting professionals as standard practice," said Brian Vroom, Vice President of Development at Thomson Creative Solutions. "For that reason, we wanted to offer our customers a proven, quality solution to handle all their XBRL needs. Our partnership with Rivet allows us to do just that."

About Dragon Tag and Dragon View

Rivet's Dragon Tag XBRL enabler and Dragon View XBRL viewer applications were designed to shield accounting and finance professionals from the complexity that sometimes accompanies XBRL adoption. Dragon Tag is a Microsoft Word and Excel add-in that enables financial professionals to create XBRL documents via "drag and drop" functionality. Dragon Tag's markup, review, validation, and export capabilities ensure XBRL documents are created quickly and correctly.

Dragon View provides simple, yet powerful XBRL document viewing and reviewing functionality without requiring advanced knowledge of XBRL. Dragon View's robust viewing options, automatic ratio calculations, and ability to export information to Microsoft Excel (Dragon View Premiere version only) allow users to leverage the power of XBRL documents.

About The Thomson Corporation and Creative Solutions

The Thomson Corporation (http://www.thomsonreuters.com/), with 2005 revenues of $8.70 billion, is a global leader in providing integrated information solutions to business and professional customers. Thomson provides value-added information, software tools, and applications to more than 20 million users in the fields of law, tax, accounting, financial services, higher education, reference information, corporate e-learning and assessment, scientific research, and healthcare. With operational headquarters in Stamford, Connecticut, Thomson has approximately 40,000 employees and provides services in approximately 130 countries. The Corporation's common shares are listed on the New York and Toronto stock exchanges (NYSE: TOC; TSX: TOC).

As part of Thomson Tax & Accounting, Creative Solutions, founded in 1979, offers a comprehensive line of integrated write-up, payroll, client accounting, depreciation, trial balance, tax, tax planning, and practice management software, as well as web building and client portal services for practicing accountants. With more than 60 CPAs on staff, Creative Solutions offers software written for accountants, by accountants. More than 50,000 firms have Creative Solutions products. Thomson Tax & Accounting also includes the RIA, PPC, and Fast-Tax business units. Learn more about Creative Solutions by visiting http://cs.thomsonreuters.com/.

About Rivet Software

Rivet Software is an innovator in developing effective and easy-to-use Financial Integrity Management and XBRL applications. Based in Denver, Colorado, Rivet Software is focused on addressing new worldwide technology requirements for the business reporting and accounting community. All Rivet Software products adhere to the XBRL global reporting standard and work with the de facto standard desktop software, Microsoft Excel and Word.  The company's management team includes industry veterans, founding members of the XBRL community, and past advisors to the American Institute of Certified Public Accountants (AICPA). For additional information, please visit www.rivetsoftware.com.

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© 2006 Rivet Software, Inc. All rights reserved. Rivet, Dragon Tag and Dragon View are either registered trademarks or trademarks of Rivet Software, Inc. in the United States and/or other countries. All other trademarks are the property of their respective owners.