The 2012 release was designed to bridge the gap between traditional 2D drafting and emerging 3D design workflows. It supports both and x64 (64-bit) architectures. Specification 32-bit Requirements 64-bit Requirements Operating System Windows 7, Vista (SP2), XP (SP3) Windows 7, Vista (SP2), XP (SP2) Processor 3.0 GHz (32-bit) / 1.6 GHz (XP) Athlon 64, Xeon, or Pentium 4 with EM64T Memory (RAM) Disk Space 2 GB for installation 2 GB for installation Risks of Unofficial .RAR Downloads