another way to prevent the cmd window from popping up is: 
BEGIN {
    Win32::SetChildShowWindow(0) if defined &Win32::SetChildShowWindow
+;
}

[download]
(source: perl windows system commandline opens which results in http://community.activestate.com/os/windows?page=11)

In reply to Re: How to hide the command prompt open duing the execution of system command? by rminner
in thread How to hide the command prompt open duing the execution of system command? by isha

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