Since you say "exe" I'm guessing this is Windows. On a UNIX system, the traditonal way to do this would be for the command you execute to be a shell command that redirects standard output to /dev/null or some other bit bucket: 

myprogram > /dev/null

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There are similar ways to redirect just standard error or both standard output and standard error if it's not that simple: 
myprogram 2> /dev/null
myprogram > /dev/null 2>&1

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You can use IPC::Run to do this sort of thing (different syntax) without invoking a shell.

In reply to Re: Filtering output from a system() call by steves
in thread Filtering output from a system() call by Anonymous Monk

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