Thank you, Prof. Taylor, for the helpful guidance concerning conflicting libraries.
Unfortunately right after that suddenly the include files could no longer be found. I struggled for more than a week with Intel who could not help me.
It turned out that the platform info x64 from the front page of the IDE had not been copied to the project property window.
Afterwards such things often seem self-evident. But wouldn't it be an idea to concentrate all the instructions needed for the installation - such as the manual, the YouTube video, the batch-file for the needed Fortran files and the 2 Forum contributions - at a single place ?
