Hi list. Microsoft are testing their update system for Visual Studio 2012 [1], which includes a v110_xp toolset [2] for "restoring" support for building software that may run on Windows XP. In essence, it uses a repurposed Windows 7 SDK with the VS 2012 compiler, instead of the Windows 8 SDK used in the normal v110 toolset. What implications do you think this has for Boost.Config and all the things predicated on MSC_VER, as this decorrelates the compiler version from the Windows SDK it uses. Has anyone installed these pre-release bits and given it a shot? (I've mailed boost-build@ about the Boost.Build implications.) [1] http://blogs.msdn.com/b/visualstudioalm/archive/2012/10/08/visual-studio-201... [2] http://blogs.msdn.com/b/vcblog/archive/2012/10/08/10357555.aspx -- Lars Viklund | zao@acc.umu.se