Wolters Kluwer North America Acquires Document Technologies, Inc.

Securities Software, Filing Services Company Will Become a Part
of CCH INCORPORATED

(CHICAGO, July 23, 2001) – Wolters Kluwer North America said today that it has acquired Document Technologies, Inc., New York City, a provider of document filing software, training and services for securities compliance. Commonly known as dTech (www.dtechdirect.com), the technology company will become part of CCH INCORPORATED (www.cch.com), Riverwoods, Ill., leading provider of tax, securities and business law information and software, and a Wolters Kluwer North America company. Terms of the sale were not released.

dTech is best known for its core product, EDGAR Ease^®, the market-leading software for compiling and submitting EDGAR filings to the Securities and Exchange Commission (SEC). Approximately half of all SEC filings are accomplished through EDGAR Ease, which is considered a pioneer in the industry. In 2000, the company enhanced EDGAR Ease to enable users to file documents using HTML, making it the only company to offer a complete filing solution.

Leveraging its experience as the author of EDGAR Ease and in preparing EDGAR filings, dTech also provides comprehensive training in all aspects of preparing and submitting EDGAR filings.

dTech will become part of CCH’s Business and Finance Group (http://business.cch.com). It will further solidify CCH’s long standing position as the leading provider of comprehensive research information services, compliance-focused desktop solutions and online tools that guide and assist legal and business professionals in understanding, applying and complying with securities laws and regulations in the U.S.

In addition to its noted print and electronic legal research information products, such as the Federal Securities Law Reports, CCH offers SEC Compliance Desktop for administering stock programs and creating Section 16 (a) filings and Written Supervisory Procedures, customizable electronic manuals and notification services for broker/dealers and exchange members.

Document Technologies, Inc. had 2000 revenues of approximately $4.4 million and employs approximately 45 people. dTech was founded in 1992 to capture the market opportunity presented by the launch of the SEC’s EDGAR system. Prior to this acquisition, the company was a closely held New York corporation with offices on Wall Street.

About Wolters Kluwer

Wolters Kluwer North America, headquartered in Chicago, is a unit of Wolters Kluwer nv, Amsterdam. It is comprised of a number of highly respected legal, tax and business information, software and service companies, including Aspen Publishing, Inc., New York City/Gaithersburg, Md.; CCH Canadian, Toronto; CCH INCORPORATED, Riverwoods, Ill.; CCH Legal Information Services, New York City; and CCH Tax Compliance, Torrance, Calif.

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