Sorry, you must verify to complete this action. Please click the verification link in your email. You may re-send via your profile .

Are there any known issues with VS Community 19 Version 16.11.27 ?

I am having trouble creating a DLL from Fortran code where I have successfully created an EXE.

I get error 53 File Not Found.

I have created EXE & DLL in the past many times with prior versions of VS. I tried a number of compiler settings to resolve the issue and nothing seems to work.

I am calling the DLL from Visual Basic with MS Excel.

VB gives "Error 53" when it can't load a user DLL. This can be the DLL itself or, more often, a DLL that DLL depends on.  As hinted by @andrew_4619 , your DLL may be built as a Debug configuration, which means it can't be loaded outside of Visual Studio. If that's the case, switch to a Release configuration. This will still depend on Intel Fortran DLLs which will be installed along with the compiler. If you're going to use this on a system where the compiler is not installed, you'll need the Intel Fortran Redistributables installed there. An alternative is to change the DLL project settings to link against static libraries - do this only if there's no other Fortran (or C/C++) in the application.

Community support is provided Monday to Friday. Other contact methods are available here .

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice .