...
If the program which has to be scheduled by JS can be started in a shell (windows Windows or unixUnix) the job-type must be a shell-job. All programs, which are started by cron or taskplaner should be running in the shell-job of JobScheduler as well.
It is important to keep in mind, that JobScheduler is running as a service (windows) or as a demon (unixUnix). JobScheduler must have at least all the requiered required permissions for accessing the resources, which are needed to execute the program.
If it should be not possible to start an executable in a shell it could be possible to implement a wrapper (e.g. in Java, ...) and execute this program as an apiAPI-job (like the "standard" jobs).