OPNT Opiant Pharmaceuticals Inc

OPNET Technologies, Inc. (NASDAQ:OPNT) will hold an investor conference call on Wednesday, May 17, 2006 at 5:00 pm Eastern Time to review financial results for the fourth quarter of fiscal 2006. 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 # 198964. The replay will be available from 7:00 pm Eastern Time May 17th through 11:59 pm Eastern Time May 21st. -- The webcast will be available at www.opnet.com or at www.investorcalendar.com, archived for seven days. The fourth quarter of fiscal 2006 financial results will be released after the market closes on Wednesday, May 17, 2006. 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. Note to editors: The word OPNET is spelled with all upper-case letters.