AMENDMENT NO. 1 TO SHAREHOLDER RIGHTS AGREEMENT Amendment, dated as of March 3, 1999 (the "Amendment"), to the Shareholder Rights Agreement, dated as of November 9, 1995 (the "Rights Agreement"), between Expert Software, Inc., a Delaware corporation (the "Company"), and The First National Bank of Boston (as predecessor to BankBoston, N.A.), a national banking association organized under the laws of the United States (the "Rights Agent"). W I T N E S S E T H WHEREAS, in accordance with the terms of the Rights Agreement, the Company deems it desirable to make certain amendments to the Rights Agreement; and WHEREAS, Section 27 of the Rights Agreement provides that prior to the Distribution Date (as defined therein), the Company and the Rights Agent shall, if the Company so directs, amend or supplement any provision of the Rights Agreement as the Company may deem necessary or desirable without the approval of holders of the Company's common stock, par value $.01 per share (the "Common Stock"); and WHEREAS, the Company intends to enter into a Merger Agreement (the "Merger Agreement") with Activision, Inc., a Delaware corporation ("Parent") and Expert Acquisition Corp., a Delaware corporation and wholly-owned subsidiary of Parent ("Acquisition Sub"), pursuant to which, among other things, the Company will be merged with and into Acquisition Sub and will become a wholly owned subsidiary of Parent; and WHEREAS, prior to entering into the Merger Agreement, the Company desires to amend certain provisions of the Rights Agreement. NOW, THEREFORE, in consideration of the premises and the mutual agreements herein set forth, the parties hereby agree that the Rights Agreement is hereby amended as follows: 1. Section 1(a) of the Rights Agreement is amended by adding at the end of Section 1(a) a new paragraph which provides as follows: "Notwithstanding anything in this Agreement to the contrary, neither Activision, Inc., a Delaware corporation ("Parent"), and Expert Acquisition Corp., a Delaware corporation and wholly-owned subsidiary of Parent ("Acquisition Sub"), nor any of their Affiliates or Associates, shall be deemed to be an Acquiring Person, and no Stock Acquisition Date or Distribution Date shall occur, as a result of the negotiation, execution or delivery of the Merger Agreement, dated as of March 3, 1999, by and among the Company, Parent and Acquisition Sub." 2. Section 2 of the Rights Agreement is amended and restated in its entirety as follows: "Section 2. Appointment of Rights Agent. The Company hereby appoints the Rights Agent to act as agent for the Company and the holders of the Rights (who, in accordance with Section 3 hereof, shall prior to the Distribution Date (as hereinafter defined in Section 3(a)) also be the holders of the Common Stock) in accordance with the terms and conditions hereof, and the Rights Agent hereby accepts such appointment. The Company may from time to time appoint such Co-Rights Agents as it may deem necessary or desirable upon 10 days prior written notice to the Rights Agent. The Rights agent shall have no duty to supervise, and shall in no event be liable for, the act or omission of any such Co-Rights Agent. In the event the Company appoints one or more Co-Rights Agents, the respective duties of the Rights Agent and any Co-Rights Agents shall be as the Company shall determine." 3. Section 26 of the Rights Agreement is amended and restated in its entirety as follows: "Section 26. Notices. Notices or demands authorized by this Agreement to be given or made by the Rights Agent or by any Co-Rights Agent or by the holder of any Right Certificate to or on the Company shall be sufficiently given or made if sent by first-class mail, postage prepaid, addressed (until another address is filed in writing with the Rights Agent) as follows: Expert Software, Inc. 802 Douglas Road North Tower, Suite 600 Coral Gables, FL 33134 Attention: Kenneth P. Currier, Secretary Subject to the provisions of Section 21, any notice or demand authorized by this Agreement to be given or made by the Company or by the holder of any Right Certificate to or on the Rights Agent shall be sufficiently given or made if sent by first-class mail, postage prepaid, addressed (until another address is filed in writing with the Company) as follows: BankBoston, N.A. c/o EquiServe Limited Partnership 150 Royall Street Canton, MA 02021 Attention: Client Administration Subject to the provisions of Section 21, any notice or demand authorized by this Agreement to be given or made by the Company or by the holder of any Right Certificate to or on any Co-Rights Agent shall be sufficiently given or made if sent by first-class mail, postage prepaid, to such address as such Co-Rights Agent shall provide to the Company (until another address is filed in writing with the Company) at the time such Co-Rights Agent is appointed by the Company. Notices or demands authorized by this Agreement to be given or made by the Company or the Rights Agent to the holder of any Right Certificate (or, prior to the Distribution Date, to the holder of any certificate representing shares of Common Stock) shall be sufficiently given or made if sent by first-class mail, postage prepaid, addressed to such holder at the address of such holder as shown on the registry books of the Company." 4. Termination of Amendment. Immediately upon the termination of the Merger Agreement in accordance with its terms, this Amendment shall become null and void and of no further force or effect. 5. Termination of Rights Agreement. If, but only if, the Effective Time (as defined in the Merger Agreement) shall occur, then immediately upon the Effective Time the Rights Agreement shall become null and void and of no further force or effect. 6. Counterpart Signatures. This Amendment may be executed in one or more counterparts all of which shall be considered one and the same amendment and each of which shall be deemed to be an original. [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 1 to Shareholder Rights Agreement to be duly executed as of the day and year first above written. EXPERT SOFTWARE, INC. By: /s/ KENNETH P. CURRIER Name: Kenneth p. Currier Title: Chief Executive Officer BANKBOSTON, N.A., (as successor of The First National Bank of Boston) as Rights Agent By: /s/ TYLER HAYNES Name: Tyler Haynes Title: Administration Manager