<p>I've got a solution which I setup / cleanup using batch files ...
- there are a pair of MSMQ ports, send and receive, with another application on the end of the queues</p>

<p>I'm finding I can't properly stop the orchestration in the batch file ... the error is the send port is unenlisted
 - I'm using the StopOrch.vbs script from the SDK samples</p>

<p>But I can go into BizTalk Admin Console and manually stop the orchestration with Full Terminate Ok</p>

<p>The setup / cleanup works Ok if I don't actually push any messages down the MSMQ queues</p>

By default you cannot do this. However, if you extend ComboBox you can add this functionality easily. Here is a quick example, it is a rough version and probably needs testing / tweaking but it shows how you could accomplish this.
```
```
package
{
    import mx.controls.ComboBox;
    import mx.core.UIComponent;

    public class ComboBox2 extends ComboBox
    {
        public function ComboBox2()
        {
            super();
        }

        protected var textInputReplacement:UIComponent;

        override protected function createChildren():void {
            super.createChildren();

            if ( !textInputReplacement ) {
                if ( itemRenderer != null ) {
                    //remove the default textInput
                    removeChild(textInput);

                    //create a new itemRenderer to use in place of the text input
                    textInputReplacement = itemRenderer.newInstance();
                    addChild(textInputReplacement);
                }
            }
        }

        override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void {
            super.updateDisplayList(unscaledWidth, unscaledHeight);

            if ( textInputReplacement ) {
                textInputReplacement.width = unscaledWidth;
                textInputReplacement.height = unscaledHeight;
            }
        }
    }
}
```
```