This tool allows you to make a SWF file from your HTML5 application. It can be usefull if you want to submit your HTML5 game to flash game websites.
allowscriptaccess="none" is in the OBJECT/EMBED element of the SWF, it won't work.
swfcombine -dz file.swf -o file_new.swf. For further details please visit swftools.org