I want to use IC13 for new projects and compile old ones with IC11, so I want to keep two compilers on my machine and use them in different projects(maybe even within single solution in Visual Studio). I tried to install Parallel Studio XE 13 without uninstalling IC11. When I do this, Visual Studio no longer sees IC11, when I try to open IC11 project, visual studio attemps to convert it to new IC13 format right away. Seems like IC13 not just overrides but overwrites all settings for Visual Studio, because when I uninstall Parallel Studio XE 13, there is niehter Intel C++ toolbar in VS nor IC11 projects are able to open.
Are there any manuals or tips on how to set this up correctly?