title: how to debug a swf file
body: <p>I'm quite new to AS3 and now I need to solve a swf crash problem.</p>
  
  <p>I have the source code and fla file, so I can debug/run it in FL, I can use trace to print out log. The problem is, on my machine, either run in FL or generated swf embed in IE works correctly. But the swf always crashes on tester's machine. </p>
  
  <p>Because the swf is run in IE, trace seems doesn't work, so I'd like to know if there's any tool I can use so that I can see all the trace output on tester's machine.</p>
  
  <p>Thanks</p>