Developing for both AIR and Flash Player

Question

I'm developing an application that will be deployed on the desktop as well as the net, so I've got a number of interfaces at points of differentiation (such as file access) where I can swap between the different implementations using the following technique:
switch(Capabilities.playerType) {
     case "Desktop":
          fileAccessInterface = new AIRFileAccess();
          break;
     default:
          fileAccessInterface = new NetFileAccess();
          break;
This works fine, especially when compiling for AIR, however, when publishing for the Flash Player, I'm still importing the AIR implementations of every interface even though they'll be unused. And of course, when I try to import an AIR-specific class (such as File, FileStream, etc.) when compiling for the Flash Player, Flash will give me an error:
"1046: Type was not found or was not a compile-time constant: FileStream."
This is obviously what you would expect to happen because it's an AIR-specific class. My question is, is there a way I can define a conditional import (such as pragma comments in other languages) depending on compile conditions? Or will I be forced to comment out all my import code for AIR-specific classes when compiling for Flash Player, and then uncomment again for AIR, etc.?
Any help would be appreciated, thanks.

Answer 1

Problem solved.
I found the config constants section of the ActionScript settings to allow for conditional compiling. Exactly what I needed.