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OPNET Technologies, Inc. Schedules Second Quarter Results Teleconference/Webcast for Tuesday, October 28, 2003

Bethesda MD-- October 8, 2003 ---- OPNET Technologies, Inc. (NASDAQ: OPNT) will hold an investor conference call on Tuesday, October 28, 2003 at 5:00 pm Eastern Time to review financial results for the second quarter of fiscal 2004.

To listen to the OPNET investor conference call:

  • Call 877-407-9210 in the U.S. or 201-689-8049 for international callers, and enter password OPT 04, or
  • Use the webcast at www.opnet.com, or at www.vcall.com (click on OPNT under "Today's VCalls"). Investors are advised to go to the web site at least 15 minutes early to register, download, and install any necessary audio software.

To listen to the archived call:About OPNET Technologies, Inc.

  • Call the replay phone number at 877-660-6853 or 201-612-7415 for international callers. For replay, enter account # 1628, conference ID # 79559. The replay will be available from 7:00 pm Eastern Time October 28th through 11:59 pm Eastern Time October 31st.
  • The webcast will be available at www.opnet.com or at www.vcall.com, archived for seven days.

The second quarter of fiscal 2004 financial results will be released after the market closes on Tuesday, October 28, 2003.

About OPNET Technologies, Inc.

Founded in 1986, OPNET Technologies, Inc. is a leading provider of management software for networks and applications. For more information about OPNET and its products, visit www.opnet.com.

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Note to editors: The word OPNET is spelled with all upper-case letters.

OPNET Media Contact:
Margarita Castillo
OPNET Technologies, Inc.
(240) 497-3000
Media@opnet.com
www.opnet.com

OPNET Investor Relations:
Mel Wesley
OPNET Technologies
(240) 497-3000
ir@opnet.com
www.opnet.com