Visual Studio 2012 introduced several platform-wide enhancements available in the ISO:
Includes IntelliTrace for "historical debugging" (recording the execution history to find bugs faster), as well as Continuous Stress-Testing and Lab Management. visual-studio-2012-ultimate-iso
First-class tools for building "Windows Store" apps and integrating with the WinRT platform. visual-studio-2012-ultimate-iso
Microsoft Visual Studio 2012 Ultimate (ISO) was the top-tier edition of the 2012 development suite, designed specifically for enterprise-level teams. It included the full range of development, testing, and architecture tools that were absent in the Professional or Premium editions. Key Exclusive Features visual-studio-2012-ultimate-iso