OPNET Technologies, Inc. Schedules Fourth Quarter Results Teleconference/Webcast for Tuesday, May 13, 2008


BETHESDA, Md., April 18, 2008 (PRIME NEWSWIRE) -- OPNET Technologies, Inc. (Nasdaq:OPNT) will hold an investor conference call on Tuesday, May 13, 2008 at 5:00 pm Eastern Time to review financial results for the fourth quarter of fiscal 2008.

To listen to the OPNET investor conference call:


 * Call 877-407-9205 in the U.S. or 201-689-8054 for international
   callers, or
 * Use the webcast at www.opnet.com, or at www.investorcalendar.com
   (click on OPNT under "VCalls by Date"). 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:


 * Call the replay phone number at 877-660-6853 or 201-612-7415 for
   international callers. For replay, enter account # 286, conference
   ID # 281833.  The replay will be available from 7:00 pm Eastern
   Time May 13th through 11:59 pm Eastern Time May 20th.
 * The webcast will be available at www.opnet.com or at
   www.investorcalendar.com, archived for seven days.

The fourth quarter of fiscal 2008 financial results will be released after the market closes on Tuesday, May 13, 2008.

About OPNET Technologies, Inc.

Founded in 1986, OPNET Technologies, Inc. (Nasdaq:OPNT) is a leading provider of solutions for managing networks and applications. For more information about OPNET and its products, visit www.opnet.com.

OPNET and OPNET Technologies, Inc. are trademarks of OPNET Technologies, Inc. All other trademarks are the property of their respective owners.



            

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