Allscripts Files Definitive Proxy Statement and Announces Date for Annual Meeting of Stockholders

Stockholders to Vote on Transactions with Misys

CHICAGO (August 27, 2008) –

Allscripts Healthcare Solutions, Inc. (“Allscripts”), the leading provider of clinical software, connectivity and information solutions that physicians use to improve healthcare, announced today that it filed a definitive proxy statement with the U.S. Securities and Exchange Commission on Thursday, August 21, 2008 in respect of the proposed transactions involving Allscripts, Misys plc (“Misys”) and Misys Healthcare Systems LLC (“MHS”), a wholly owned subsidiary of Misys, as announced on March 18, 2008. Allscripts further announced that it will hold its annual meeting of stockholders on Monday, September 22, 2008, at 10:00 a.m. Central Time, to approve certain actions required to be taken by Allscripts in connection with the proposed transactions, among other matters. The meeting will be held at One South Dearborn Street, Chicago, Ill. For more information, please see the definitive proxy statement.

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The Allscripts board of directors has approved the merger agreement with Misys and recommends approval of the share issuance and related transactions contemplated by the merger agreement by Allscripts stockholders. Completion of the transaction is subject to certain conditions, including approvals by the stockholders of Allscripts and the shareholders of Misys and other customary closing conditions. Subject to the satisfaction of these closing conditions, the transactions are expected to be completed on or about September 26, 2008.

About Allscripts

Allscripts (Nasdaq: MDRX) is the leading provider of clinical software, connectivity and information solutions that physicians use to improve healthcare. The company’s unique solutions inform, connect and transform healthcare, delivering improved care at lower cost. More than 40,000 physicians and thousands of other healthcare professionals in clinics, hospitals and extended care facilities nationwide utilize Allscripts to automate everyday tasks such as writing prescriptions, documenting patient care, managing billing and scheduling, and safely discharging patients, as well as to connect with key information and stakeholders in the healthcare system. To learn more, visit http://www.allscripts.com.

Additional Information and Where to Find It

This communication is being made in respect of the proposed business combination involving a subsidiary of Allscripts and MHS, a wholly owned subsidiary of Misys. In connection with this proposed transaction, Allscripts has filed with the Securities and Exchange Commission (the “SEC”) a definitive proxy statement. On August 22, 2008, Allscripts is mailing the definitive proxy statement and proxy card to its stockholders of record as of August 15, 2008. BEFORE MAKING ANY DECISION WITH RESPECT TO THE PROPOSED TRANSACTION, INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE PROXY STATEMENT AND OTHER RELEVANT MATERIALS WHEN THEY BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE COMPANY AND THE PROPOSED TRANSACTION. Investors and security holders can obtain copies of Allscripts’ materials (and all other offer documents filed with the SEC) when available, at no charge on the SEC’s website: http://www.sec.gov. Copies can also be obtained at no charge by directing a request for such materials to Allscripts at 222 Merchandise Mart Plaza, Suite 2024, Chicago, Illinois 60654, Attention: Lee Shapiro, Secretary. Investors and security holders may also read and copy any reports, statements and other information filed by Allscripts with the SEC, at the SEC public reference room at 100 F Street, N.E., Washington, D.C. 20549. Please call the SEC at 1-800-SEC-0330 or visit the SEC’s website for further information on its public reference room. Allscripts’ directors, executive officers and other members of management and employees may, under the rules of the SEC, be deemed to be participants in the solicitation of proxies from the stockholders of Allscripts in favor of the proposed transaction. Information about Allscripts, its directors and its executive officers, and their ownership of Allscripts’ securities, is set forth in its definitive proxy statement for the 2008 Annual Meeting of Stockholders of the Company, which was filed with the SEC on August 21, 2008.

Forward-Looking Statements

This communication contains forward-looking statements. Those forward-looking statements include all statements other than those made solely with respect to historical fact. Forward-looking statements may be identified by words such as “believes”, “expects”, “anticipates”, “estimates”, “projects”, “intends”, “should”, “seeks”, “future”, continue”, or the negative of such terms, or other comparable terminology. Such statements include, but are not limited to, statements about the expected benefits of the transaction involving Allscripts, MHS and Misys, including potential synergies and cost savings, future financial and operating results, and the combined company’s plans and objectives. In addition, statements made in this communication about anticipated financial results, future operational improvements and results or regulatory approvals are also forward-looking statements. Such forward-looking statements are subject to numerous risks, uncertainties, assumptions and other factors that are difficult to predict and that could cause actual results to vary materially from those expressed in or indicated by them. Such factors may include, but are not limited to: (1) the occurrence of any event, development, change or other circumstances that could give rise to the termination of the merger agreement; (2) the outcome of any legal proceedings that have been or may be instituted against Allscripts, Misys or MHS and others following announcement of entering into the merger agreement; (3) the inability to complete the proposed transaction due to the failure to obtain stockholder or shareholder approval or the failure of any party to satisfy other conditions to completion of the proposed transaction; (4) risks that the proposed transaction disrupts current plans and operations and potential difficulties in employee retention as a result of the merger; (5) the ability to recognize the benefits of the merger; (6) legislative, regulatory and economic developments; and (7) other factors described in filings with the SEC. Many of the factors that will determine the outcome of the subject matter of this communication are beyond Allscripts’, Misys’ and MHS’ ability to control or predict. Allscripts can give no assurance that any of the transactions related to the merger will be completed or that the conditions to the merger will be satisfied. Allscripts undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. Allscripts is not responsible for updating the information contained in this communication beyond the published date, or for changes made to this communication by wire services or Internet service providers.

SOURCE Allscripts Healthcare Solutions, Inc.

CONTACT: Dan Michelson, Chief Marketing Officer, +1-312-506-1217,
dan.michelson@allscripts.com, or Todd Stein, Senior Manager|Public Relations,
+1-312-506-1216, todd.stein@allscripts.com, or Bill Davis, Chief Financial
Officer, +1-312-506-1211, bill.davis@allscripts.com, all of Allscripts
Healthcare Solutions, Inc.
Web site: http://www.allscripts.com
(MDRX)

Source: Allscripts