Re-run the same .EXE program after previous finished

Question

I have this PaymentAPI.exe program that need to be run, then rest for 5 minutes, then continue new run instance. It is crucial that not more than 1 instance should be running at same time. The running duration may depends on network connectivity and data within.

For example it may run for 5 minutes or 30 minutes. However no matter how long it runs, when it completed, it will wait for 5 minutes then run again. How do I setup such setting in Task Scheduler? Thank you.

Answer 1

Use a batch script (.bat) like this:

:loop
PaymentAPI.exe
timeout 300
goto loop

It loops forever, waiting 300 seconds between launches.

Edit: This ultra-simple script is being downvoted, apparently because of lack of understanding of what it does.

It is based on the fact that a script launching a program is paused as long as that program is executing. To execute in parallel and not cause the script to pause, the program must be launched by the Start command, not by simple invocation, and will then open a new window of its own (either graphical or console). This is what the above script is based on, to achieve exactly what is demanded by the poster.