I'm running Windows 8.1 on my laptop and have installed Thermo-calc software, the installation ran fine and the software is able to connect to the licence server but when im trying to do calculations it returns an error message " Intel(r) Visual Fortran run-time error"
Your help will be much appreciated.
I have no idea what software you are using, but could you show the actual runtime error you are experiencing? Runtime error can range from not being able to find the runtime libraries to division by zero or reading a wrong item in a file and anything between or outside this range.
Unless you have the Fortran source code of Thermo-Calc, which I doubt, and you are allowed to share that source code, which I doubt even more, I am afraid that you must take up the problem with the proprietor of Thermo-Calc.
Right, the runtime error is reading from unit 5, which is connected to CONN$. Logical unit 5 is normally connected to "standard input" - that is, the keyboard - unless you open it specifically for some file on disk. But the given name indicates that it is indeed the keyboard.
As such the problem has nothing to do with the Intel Fortran compiler but everything with the way the software you are using works. Your best option is to contact the people responsible for this software. As we have no clue as to what the software is and what it is doing, there is little beyond this simple diagnostics that we can do.