Your first "replacement": 
$sts = system($matlab_cmd_str);

[download]
should work like you want it to on a win32 system. The system command has to be told specifically to return before the command completes, and you do not do that here.

In reply to Re: Problem invoking Matlab from Perl: works on Linux, fails on Windows by technojosh
in thread Problem invoking Matlab from Perl: works on Linux, fails on Windows by jim99

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