Thank you all for your helpful comments.  I have uninstalled everything and started again.  Next I installed Microsoft Visual Studio Community 2022 (64-bit) Version 17.0.4.  I installed the Intel® oneAPI Base Toolkit for Windows* (64 bit) and the Intel® oneAPI HPC Toolkit for Windows. FORTAN is now supported.  I have started a new solution and added all my source code files.  It all looks good until I click the build tag. All that happens then is that I see the output message

Build started...========== Build: 0 succeeded, 0 failed, 1 up-to-date, 0 skipped ==========

But I cant find and executable or any object files. When I click the start button I get the message "The system cannot find the file specified".  I last used FORTRAN using Microsoft Visual FORTRAN about five years ago, so I am a bit in the dark about how to proceed.  Am I missing something?