Have you tried that when safe signals are in force?

It certainly doesn't work on the OPs platform (win32 going by his use of MyProgram.exe).

I believe that it also doesn't work on *nix platforms since 5.8.0 unless you explicitly disable safe signals .

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"Too many [] have been sedated by an oppressive environment of political correctness and risk aversion."

In reply to Re^2: How to timeout if a call to an external program takes too long by BrowserUk
in thread How to timeout if a call to an external program takes too long by deivakumar

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