64bit only.

Dassault Systemes CATIA is a high-end CAD / CAM /CAE software for almost
everything can be done in virtual product development. CATIA provides powerful
tools for 2D sketching and 3D modelling, extensive support for mold design and
machining, and even the possibility of innovation-driven design with product
analysis and failure prediction tools. Mechanical Design Suite provides products
for intuitive specification driven modeling for Solid, Hybrid and Sheetmetal
Part design, Assembly design and integrated Drafting.The new Light Manufacturing
Part Generation product notably enhances productivity and collaboration by
allowing users to work concurrently on the same composite part, later merging
and synchronizing separately designed stacks into a single manufactured
composite part. A new grid-based design methodology automatically generates
plies by taking each cell?s composite specifications defined during
simulation and applying composite design best practices.

http://www.3ds.com/products/catia/portfolio/catia-v5/catia-v5r20/