BETHESDA, Md., Oct. 8, 2009 (GLOBE NEWSWIRE) -- OPNET Technologies, Inc. (Nasdaq:OPNT) will hold an investor conference call on Thursday, October 29, 2009 at 5:00 pm Eastern Time to review financial results for the second quarter of fiscal 2010.To listen to the OPNET investor conference call:

 * Call 888-352-6795 in the U.S. or 719-867-0353 for international
   callers, or
 * Use the webcast at www.opnet.com.  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 888-203-1112 or 719-457-0820 for
   international callers. For replay, enter passcode # 5524020.  The
   replay will be available from 7:00 pm Eastern Time, October 29th
   through Midnight Eastern Time, November 4th.
 * The webcast will be available at www.opnet.com, archived for seven
   days.

The second quarter of fiscal 2010 financial results will be released after the market closes on Thursday, October 29, 2009.

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.

CONTACT:  OPNET Technologies, Inc.
          Media Contact:
          Margarita Castillo
            Media@opnet.com
          Investor Relations:
          Mel Wesley
            ir@opnet.com
          (240) 497-3000
          www.opnet.com