Earlier versions of MSBuild could be found here: %programfiles(x86)%\\msbuild\\\\bin\\msbuild.exe.
%programfiles(x86)%\\msbuild\\\\bin\\msbuild.exe.
But for Visual Studio 2017RC the path
I also run the build tools from a bat file on my CI server: The new location I've found is this:
%programfiles(x86)%\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\msbuild.exe