Hi, Just a general comment for compiling Boost with Intel compiler. I have been compiling boost with Intel-win for a while now, and I usually use the command prompt shortcut which comes with the compiler. This will set up the environment correctly. I have been working in Linux recently, so have not tried out Intel 12.1 and Boost 1.47 (now 1.48), so something must have changed on either side. I will see if I can build it this weekend. I do recall there were some changes from 11.1 to 12.0 which caused a lot of deprecation warnings (something to do with where iclvars.bat is located). I am not sure if this was ever fixed (i did create a ticket here: https://svn.boost.org/trac/boost/ticket/5305). Of course this is only important if you run a standard command prompt (and not the Intel one). Regards, Edward