Flash MX 2004. Dropped in Adobe Animate.
document.importSWF(fileURI)
fileURI A string, expressed as a file:/// URI, that specifies the file for the SWF file to import.
Nothing.
Dropped in Adobe Animate.
The following example imports the "mySwf.swf" file from the Flash Configuration folder:
fl.getDocumentDOM().importSWF(fl.configURI+"mySwf.swf");