The absolute bare minimum would be:
// #include Config._jsfl
var scriptPath = FLfile.uriToPlatformPath(fl.scriptURI);
var scriptPathEnd = scriptPath.lastIndexOf("\\");
scriptPath = scriptPath.slice(0, scriptPathEnd + 1);
fl.runScript(FLfile.platformPathToURI(scriptPath + "Config._jsfl")); /*jsl:import Config._jsfl*/
This is more or less copied from my code, JSL tags included. I make the extensions on any libraries to be ._jsfl so that if it's in Flash's Commands folder, they don't show up in the menu.
I wrote a set of static classes (a Logging system, URI conversions, array utility functions) and wrote a global include
function using them to automatically convert a relative path to an absolute URI based upon the running scripts location so that I could just say include("file._jsfl");
to simplify my scripts. HOWEVER all my scripts have to do that first include as shown above to gain the include
function. Since my include function relies on a handful of static classes, I've not pasted it here.
Edit: spelling error.