On "perl, v5.8.1 built for MSWin32-x86-multi-thread"
this worked fine: 
exec("exectest.pl") or die "Error $!\n";

[download]

Update: Same code also worked on "perl, v5.8.0 built for i386-linux-thread-multi"

- Tom

In reply to Re: "Invalid argument" error with exec() by tcf22
in thread "Invalid argument" error with exec() by Sprad

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