Feb 22, 2005 - Loading a FlashPaper SWF Into Flex
Integrating FlashPaper content at runtime

From Matt Chotin:FlashPaperLoader.as

class FlashPaperLoader extends mx.controls.Loader {
    function init() : Void
    {
        addEventListener("complete", this.setFlashPaperSize);
        addEventListener("resize", this.setFlashPaperSize);
        scaleContent = false;
    }

    function setFlashPaperSize()
    {
        var fp = content.getIFlashPaper();
        // If FlashPaper isn't finished initializing, then try again later
        if (fp == undefined || fp.setSize(width, height) == false)
        {
            doLater(this, "setFlashPaperSize");
        }
    }

}

Usecase:

<mx:Panel id="panel1" label="flash paper document" width="100%" height="100%">
      <FlashPaperLoader contentPath="..."  width="100%" height="100%" />
  </mx:Panel>