Can I use Perl with Flex?

Question

I would like to run several Perl scripts from Flex. Following the only example I found online, I have the files/code listed below. The problem is, when I test locally, I get nothing as the message. When I upload to my server, I also get nothing as the message. Perl seems to be installed properly on the server. Other scripts in the directory run fine. Also, the Perl script below runs fine when I run it through command line. So... I'm very confused as to if this can even be done.
main.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
     <mx:Script>
     <![CDATA[
         private function onResult():void
             txt.htmlText = txt.htmlText + "<br/>Msg1: " + xmlService.lastResult.messages["msg1"];
             txt.htmlText = txt.htmlText + "<br/>Msg2: " + xmlService.lastResult.messages["msg2"];
     ]]>
     </mx:Script>
     <mx:HTTPService id="xmlService" result="onResult();" resultFormat="e4x" url="test_IO.pl" />
     <mx:Panel width="350" height="280" layout="absolute" horizontalCenter="0" verticalCenter="0" color="#000000" fontSize="12" fontFamily="Verdana">
         <mx:Button x="126.5" y="10" label="Test Me" click="xmlService.send();"/>
         <mx:TextArea x="10" y="42" width="310" height="188" id="txt" verticalScrollPolicy="on"/>
     </mx:Panel>
</mx:Application>
test_IO.pl
#!/usr/bin/perl
use strict;
use XML::Writer;
print "Content-type: text/xml\n\n"; 
my $xml = new XML::Writer(); 
$xml->startTag("root"); 
  $xml->startTag("messages"); 
    $xml->dataElement(msg1=> "Hello World"); 
    $xml->dataElement(msg2=> "Goodbye World"); 
    $xml->endTag(); 
    $xml->endTag(); 
$xml->end();

Answer 1