Microsoft and Dassault Systèmes Expand Alliance into Virtual Earth

Paris, France, REDMOND, Wash., June 26, 2007- Dassault Systèmes (DS) (Nasdaq: DASTY; Euronext Paris: #13065, DSY.PA), a world leader in 3D and Product Lifecycle Management (PLM) solutions, and Microsoft Corp. today announced the extension of their alliance, committing to add advanced new features to Microsoft’s Virtual Earth™ platform.  Combining Microsoft’s geolocalisation technology with DS’s proven 3D modeling and realistic visualization know-how, this alliance will enable consumers to add an entirely new level of realism within Virtual Earth, providing an unrestricted freedom for creativity and innovation.

“Together, our technologies will allow for a fusion of the real and virtual worlds that unleashes our imagined world and bridges it with the one we live in,” says Bernard Charlès, president and CEO, Dassault Systèmes.  “Our lifelike 3D modeling solution will provide a robust dimension to Microsoft’s powerful, immersive online mapping and visualization experience.”

“Our alliance with Dassault Systèmes represents a significant commitment to delivering an ever-increasing level of realism within the Virtual Earth platform,” says Stephen Lawler, general manager of Virtual Earth at Microsoft.

This strategic alliance will leverage DS’s exact 3D modeling technologies -which are based on its CATIA world class 3D modeling capabilities.  These capabilities will seamlessly integrate with Virtual Earth, facilitating design reuse and modifications for quicker design ramp-ups and innovations.

For more information about the Microsoft-Dassault Systèmes alliance, visit: http://www.3ds-microsoft.com.