Quite simple, i wouldn't recommend Flash in a first place as a 2D gamedev tool if you're after standalones and crossplatform availability as this is something you don't get in one step unless you also invest into further tools. Doing 2d online content of course is a different story.
Otherwise you also could embed your flash game into director (dependig on what features you're using), maybe add a few third party xtras and build your standalones from there, this also works but it's kind of let's say not a direct way.
Otherwise you also could embed your flash game into director (dependig on what features you're using), maybe add a few third party xtras and build your standalones from there, this also works but it's kind of let's say not a direct way.