In general, you can open projects created by older versions of Intel® Visual Fortran and use them directly. If the projects were created in older versions of Microsoft Visual Studio*, the solution file is converted first and then any non-Fortran projects it contains. Projects created in newer versions of Intel® Visual Fortran might not be usable in older versions.
Projects created in Compaq* Visual Fortran 6.0 or later can usually be converted to Intel® Visual Fortran as follows:
Some general conversion principles apply:
It is good practice to make a backup copy of the project before starting conversions.
Intel® Fortran projects are created and built in a particular version of Microsoft Visual Studio. If you open the project in a later version, you will be prompted to convert the solution. Once converted, a solution cannot be used in its previous environment.
Compaq Visual Fortran 6.x projects can be converted to Intel® Fortran projects in Microsoft Visual Studio 2017, 2019, or 2022 environments. Fortran-only projects are simpler to convert.
Project conversion support is provided for Compaq Visual Fortran Version 6.x only. Compaq Visual Fortran projects created with earlier versions may not convert correctly.
Fortran source files, resource files, and MIDL files lose any custom build step information when converted from Compaq Visual Fortran to Intel® Fortran. For other file types, custom build steps are propagated during the project's conversion.
Conversion of Fortran and C/C++ mixed language projects results in the creation of two separate projects (a Fortran project and a C/C++ project) in a single solution.
Intel® Fortran projects that are created with a point release (for instance, 2022.x) are typically backward compatible to the first release of that number (in this case, 2022.0). Projects are not backward-compatible between major release numbers.