TIME RUNNING OUT TO REGISTER FOR INTERNATIONAL OIL AND GAS CFD CONFERENCE (IOCC) IN LONDON

November 16th, 2006, ANSYS, Sheffield, UK - There are now less than two weeks left to register before the International Oil and Gas CFD Conference opens in London on November 30th, the first event of its kind to be held in the UK. A Final Agenda has now been announced highlighting an impressive array of keynote speakers from industry leading global companies including Shell, BP, Halliburton, NATCO, EniTechnologie, and Pluere. The IOCC will be one of the single biggest gatherings of CFD industry practitioners within the Oil and Gas and Petrochemical industries, ever. Specifically targeted at users and team managers involved with the application of CFD, the international importance of the event is already evident with registrants showing a significant North American, European and Asian/Middle East split. The IOCC will feature real world CFD application sessions on Separation Technologies, Dispersion Modeling, Refinery Modeling, LNG, and Downhole & Drilling Operations, coupled with leading-edge research into Discrete Element Modeling, Vortex-Induced Vibration, and Multiphase Flows in the Oil & Gas Industry, thus ensuring that a complete gamut of current and emerging CFD applications are covered in the conference. The IOCC is being held on board the HQS Wellington, which is permanently moored on the River Thames at Embankment in the heart of London. Hosted by ANSYS, the event will attract in excess of 120 representatives of the global oil and gas industry, and will feature 24 presentations over two days (November 30th/December 1st). There will also be an exhibition by partner solutions providers including Dassault Systemes, HP, Microsoft and Sharc. In addition to the conference and exhibition, delegates will be able to attend the evening dinner to be held at The Orangery in the world famous Kensington Palace. TO REGISTER FOR THE EVENT OR FOR MORE INFORMATION, PLEASE VISIT: http://www.fluent.com/worldwide/europe/events/iocc_06/index.htm

-ends- About ANSYS, Inc. ANSYS, Inc., founded in 1970, develops and globally markets engineering simulation software and technologies widely used by engineers and designers across a broad spectrum of industries. The Company focuses on the development of open and flexible solutions that enable users to analyze designs directly on the desktop, providing a common platform for fast, efficient and cost- conscious product development, from design concept to final-stage testing and validation. The Company and its global network of channel partners provide sales, support and training for customers. Headquartered in Canonsburg, Pennsylvania, U.S.A., with more than 40 strategic sales locations throughout the world, ANSYS, Inc. and its subsidiaries employ approximately 1,400 people and distribute ANSYS products through a network of channel partners in over 40 countries. Visit www.ansys.com for more information. About Fluent Inc. Fluent Inc. is a wholly owned subsidiary of ANSYS, Inc., (NASDAQ: ANSS), one of the world's largest providers of computational fluid dynamics (CFD) software and consulting services. Fluent's software is used for simulation, visualization and prediction of fluid flow, heat and mass transfer and chemical reactions. It is a vital part of the computer-aided engineering (CAE) process for companies around the world and is deployed in nearly every manufacturing industry. Using Fluent's software, product development, design and research engineers build virtual prototypes and simulate the performance of proposed and existing designs, allowing them to improve design quality while reducing cost and speeding time to market. ANSYS, ANSYS Workbench, CFX, AUTODYN, FLUENT and any and all ANSYS, Inc. product and service names are registered trademarks or trademarks of ANSYS, Inc. or its subsidiaries located in the United States or other countries. ICEM CFD is a trademark licensed by ANSYS, Inc. All other trademarks or registered trademarks are the property of their respective owners. CATIA is a registered trademark of Dassault Systemes. SOURCE ANSYS, Inc. CONTACT: Media, Kelly Wall, +1-724-514-3076, or kelly.wall@ansys.com, or Investors, Lisa O'Connor, +1-724-514-1782, or lisa.oconnor@ansys.com