Get invokeEvent params

I'm trying to retrieve the arguments from an invokeEvent on a desktop app and I'm finding that they seem to be only working on MacOS. I've set up the right URI scheme for mac and registry for Windows.

When clicking a link in a web page :

com.myapp.open.module://3428

The invoke handler is triggered on both platforms but arguments length is always 0 on Windows

private function onInvoke(e:InvokeEvent):void

{

// length is 0 on Windows   args = e.arguments

}

Any ideas ?