NEW YORK, Oct. 5 /PRNewswire-FirstCall/ -- The McGraw-Hill Companies (NYSE: MHP) announced today that its third quarter 2006 results will be released before the start of NYSE trading on Thursday, October 19, 2006.

At 8:30 AM Eastern Time, following the earnings announcement, the Corporation's senior management will host a conference call to discuss the results. The call will be open to all interested parties and will also be available by Webcast. Discussions may include forward-looking information. Additional information presented during the conference call may be made available on the Investor Presentations page of the Corporation's Investor Relations Website at www.mcgraw-hill.com/investor_relations.

After the conference call, a recorded replay will be available within approximately two hours and will remain available by telephone and the Internet for seven days. The prepared remarks and slides will also be available for downloading from the Investor Relations Website's Investor Presentations archive several hours later.

RSVP Requested: Telephone participants are asked to RSVP by October 18, 2006 either by phone or the Web. To RSVP via the Web, go to www.mymeetings.com. In the "Events" box click on "Web RSVP." Enter the conference ID 4795818 and the passcode MCGRAW HILL (case sensitive). To RSVP by phone, domestic participants may call (800) 753-0663; international participants may call +1 (402) 998-1879 (long distance charges will apply). Internet participants do not need to RSVP.

    Access Instructions for Live Call with Senior Management
    October 19, 2006 at 8:30 AM (Eastern Time)

    Step 1: Select your listening option

    A. By Telephone: Please dial-in by 8:20 AM Eastern Time to register for
       the call. Domestic participants may call (888) 323-5423; international
       participants may call +1 (415) 228-5016 (long distance charges will
       apply).  The passcode is McGraw-Hill and the conference leader is
       Harold McGraw III.

    B. By Internet: Go to www.mcgraw-hill.com/investor_relations and click on
       the Earnings Announcement link under Investor Presentation Webcasts. At
       the Event Details screen, select the Webcast link and register through
       the guest book. You will need Windows Media Player.

    Step 2 (optional): View slides online during the call

Go to www.mymeetings.com/nc/join. The conference meeting number is PG4795818, the passcode is MCGRAW HILL (case sensitive), and the event type is "Conference." Click on the "Proceed" button. You will need Windows Media Player. For technical assistance during the call, press * 0.

NOTE: Please perform a system check to ensure your computer is properly configured to participate in a Net Conference. Go to www.mymeetings.com/netconferencing/lm2005/index.php and click on "Check Your System Now."

    Replay Options Available from October 19 - October 26, 2006

    A. By Telephone-Audio Only: A recorded replay will be available
       approximately two hours after the meeting concludes and will remain
       available until 11:30 PM (Eastern Time) on Thursday, October 26, 2006.
       Domestic participants may call (866) 402-3769; international
       participants may call +1 (203) 369-0556 (long distance charges will
       apply). No passcode is required.

    B. By Internet-Audio and Slides: Go to
       www.mcgraw-hill.com/investor_relations  and click on the Earnings
       Announcement link under Investor Presentation Webcasts. At the Event
       Details screen, select the Webcast Replay link. You will need Windows
       Media Player.

Founded in 1888, The McGraw-Hill Companies is a leading global information services provider meeting worldwide needs in the financial services, education and business information markets through leading brands such as Standard & Poor's, McGraw-Hill Education, BusinessWeek and J.D. Power and Associates. The Corporation has more than 290 offices in 38 countries. Sales in 2005 were $6.0 billion. Additional information is available at www.mcgraw-hill.com.

Issued: October 5, 2006

SOURCE The McGraw-Hill Companies

Contact: Investor Relations: Donald S. Rubin Senior Vice President, Investor Relations (212) 512-4321 (office) donald_rubin@mcgraw-hill.com For questions regarding call access: Celeste M. Hughes Senior Manager, Communications and Shareholder Relations (212) 512-2192 (office) celeste_hughes@mcgraw-hill.com News Media: Steven H. Weiss Vice President, Corporate Communications (212) 512-2247 (office) (917) 699-9389 (mobile) weissh@mcgraw-hill.com Jason Feuchtwanger Senior Manager, Media Relations (212) 512-3151 (office) (347) 419-4169 (mobile) jason_feuchtwanger@mcgraw-hill.com