The provided ISO file, "AUTODESK AUTOCAD UTILITY DESIGN v2013 WIN64-ISO", is a 64-bit version of the software for Windows. The ISO file contains the following:
Windows 7 (Enterprise, Ultimate, Professional, Home Premium) or Windows XP Professional (SP2+) Windows 7 (64-bit)
The system requirements for Autodesk AutoCAD Utility Design 2013 are as follows:
AMD Athlon 64, Opteron, or Intel Xeon/Pentium 4 with EM64T & SSE2 3.0 GHz or higher (Dual-Core for 3D) 4 GB to 8 GB (especially for 3D modeling) Disk Space 6 GB for installation 12 GB+ for complex projects (e.g., Civil 3D integration) Display 1,024 x 768 True Color 1,600 x 1,050 or higher Standard Workflow Checklist
Features a flexible, movable command line palette and enhanced multifunction grips for a more intuitive drawing experience. System Requirements (Win64)