I am trying to create a program that manages child processes by sending data to their standard in and monitoring the output from stdout. It works great on Unix and even under cygwin but it dies horribly under ActivePerl for Windows (5.8-5.8.3). I've created this sample script which demonstrates the problem: 
if ($pid=fork() ) {
    select(undef,undef,undef,.1);
    print "parent\n";
} else {
    open (STDOUT, ">test.txt");
    system("echo child");
}

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Under unix and cygwin you get the expected bahavior, a file test.txt with "child" in it and the program prints "parent" as it's output. Under Windows I get no output and a file that has both "hi" and "parent" in it. From what I've read about fork emulation under Windows it sounded like this should work. In fact, if I try the example listed in perlfork under Windows it doesn't work! Does anyone know what's going on here?

In reply to Windows filehandles and fork by egarland

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