Can't get IIS Express 8 beta to run website as 64-bit process

Question

on x64 Windows 7 I am trying to get hello world MVC 3 website running as 64-bit process (so Environment.Is64BitProcess returns true on a page) using IIS Express 8 latest bet

Answer 1

This option is now part of Vs 2013 / 2015 / 2017:

Tools | Options | Projects and Solutions | Web Projects | Use the 64 bit version of IIS Express