Hey everyone - need some help -
Here's a hodge-podge of information:

Custom Event Class:

package com.events {
    import flash.events.Event;

    public class CustomEvent extends Event {
        public static const REMOVED_FROM_STAGE:String = "removedFromStage";
        public var data:*;

        public function CustomEvent(type:String, customData:*=null, bubbles:Boolean=false, cancelable:Boolean=false) {
                super(type, bubbles, cancelable);
                this.data = customData;
        }

        public override function clone():Event {
                return new CustomEvent(type, data, bubbles, cancelable);
        }

        public override function toString():String {
                return formatToString("CustomEvent", "type", "data", "bubbles", "cancelable", "eventPhase");
        }
    }
}

Using the following:

var urlLoader:URLLoader = new URLLoader();
            urlLoader.dataFormat = URLLoaderDataFormat.BINARY;
            urlLoader.addEventListener(Event.COMPLETE, onSwfLoaded);
            urlLoader.addEventListener(IOErrorEvent.IO_ERROR, onIoError);
            urlLoader.addEventListener(SecurityErrorEvent.SECURITY_ERROR,
onSecurityError);
            try {
                urlLoader.load(new URLRequest(txtPath.text));
            } catch (e:Error) {
                resetBrowseControls();
                txtError.text = "Error:\n" + e.toString();
                urlLoader.removeEventListener(Event.COMPLETE, onSwfLoaded);
                urlLoader.removeEventListener(IOErrorEvent.IO_ERROR, onIoError);
                urlLoader.removeEventListener(SecurityErrorEvent.SECURITY_ERROR,
onSecurityError);
            }

        }

        private function onSwfLoaded(e:Event):void {
            var urlLoader:URLLoader = URLLoader(e.currentTarget);
            urlLoader.removeEventListener(Event.COMPLETE, onSwfLoaded);
            urlLoader.removeEventListener(IOErrorEvent.IO_ERROR, onIoError);
            urlLoader.removeEventListener(SecurityErrorEvent.SECURITY_ERROR,
onSecurityError);

            _bytes= ByteArray(URLLoader(e.currentTarget).data);

            _loader = new Loader();
            var loaderContext:LoaderContext = new LoaderContext();
            _loader.contentLoaderInfo.addEventListener(Event.COMPLETE,
onLoaderInit);
            _loader.loadBytes(_bytes, loaderContext);
        }

        private function onLoaderInit(e:Event):void {
            resetBrowseControls();
            populateList(_bytes);
        }

I made a custom loader to replace the urlLoader and even tried a
replacement for the _loader using the same custom event.

Works great for the first addEventListener:

urlLoader.addEventListener(Event.COMPLETE, onSwfLoaded);

But stops on the second addEventListener.

If I just apply the custom event to the following...

_loader.addEventListener(Event.COMPLETE, onLoaderInit);

VERSUS

_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoaderInit);

it works just fine.

As soon as I use it on the contentLoaderInfo line, it throws that type
error
cannot convert CustomEvent to Event error.

I also double checked that my custom event listener was overriding clone()
properly and it looks like it does.

Any ideas as to why it's different?

Thanks

[Nutrox]

Add the clone method to your CustomEvent class:

override public function clone():Event
{
    return new CustomEvent( type, data, bubbles, cancelable );
}

[RandallPotter]

I've already got that in there - thank you Nutrox for replying

public override function clone():Event {
return new CustomEvent(type, data, bubbles, cancelable);
}

[Nutrox]

Silly me.

Hmm... when and how are you dispatching your custom event?