When trying to start IGT tutorial step 1 and 2 from visual studio, an error occurs because dlls are missing. There is a workaround: copy the release or debug batch file from the binary folder and replace the call of the workbench by the MITK.sln file. If then visual studio is started with the path variable set, the tutorials can be started.
Another workaround is to configure the environment variable for your executable in Visual Studio. To do so, first select Properties from MitkWorkbench context menu. In the Property Pages dialog, select Configuration Properties → Debugging. Copy the value of the variable 'Environment'. Paste it in the 'Environment' field of the respective executable.