Previously I've been using (method name escapes me) to add my 
dissector as a subdissector of http based on the media-content header 
property, but that is no longer going to be a legitimate means of 
dissecting the protocol I'm working with and I need to do this based on 
port.
 That said, here's what I'm doing, followed by the problem I'm having:
* Setup SSL dissector with: ip,http,443,<path>
* Calling:   http_dissector_add (443, <my dissector handle>);  ... from 
within my code.
 But, it never hands off the http packet to my dissector.  I'm still 
fairly new to this, so I'm unsure how to proceed.  I plan on tracing 
through once http gets ahold of it, and see if I can figure it out, but 
if anyone has any ideas they'd be appreciated.
-Brian