Why are you trying to export a SWF file from After Effects? This was almost never a good idea, which is why export to SWF was removed.
It is nearly always a better idea to export a video file (e.g., in H.264 format through Adobe Media Encoder) that you can then link or embed in a SWF container through Flash Professional.
I've never exported an swf from AE. Does it retain vector information then? We embed like you suggested, Todd...
> Does it retain vector information then?
No, it didn't, except in very constrained cases. This is among the reasons that we removed this functionality several versions ago. It didn't work well or usefully.