Requirements

Minimum Windows XP/Vista Requirements
Operating System       Windows XP Service Pack 3 or Windows Vista Service Pack 1
CPU 	               Intel® Core™ 2 Duo 1.86 GHz or AMD Athlon™ 64 X2 4000+ or better
Memory 	               1 GB (XP)
                       2GB (Vista)
Hard Drive Space       8GB of uncompressed hard disk space (Plus 500MB for swap file.)
Graphics Hardware      DirectX 9.0c compliant card with 256 MB 3D hardware accelerator 
                       (NVIDIA 7800GT/ATI® Radeon™ X1800 256 MB or better)
                       and support for Pixel Shader 3.0
Sound Hardware 	       100% DirectX 9.0c compliant card