NCsoft Launcher - Allows multi instances of GW ?

You might know Lineage2 becomes free to play now and to launch it you need to download the NCsoft Launcher which picks up GW and allows you to start it.

Now in the settings you can tick a box to allow multiple instances of games to run and I'm wondering if it works with GW. I've tried it and it asks if you want to run another copy but nothing happens. I already use GW-ML and wondered if it messed with it in some way. Has anyone here found it works ?

I downloaded the launcher and tried it but no new instance of Guild Wars is created. What it does when you hit the Launch Another button is switch to the the instance that was already opened. You can easily see this if you are playing Guild Wars in window mode.