I think the IP v6 has also some problems in Windows, but I am not sure. Check the Pharo FAQ.

On Wed, Nov 3, 2010 at 12:02 PM, St�phane Ducasse <stephane.ducasse@inria.fr> wrote:
> I did create my own wizard mechanism. The main reason for that is for best
> integration with UIBuilder, classes and widgets from CLFramework. I don�t
> want depends of third parts if I can avoid :)

But you would have look at Merlin and mentioned that may be we could have added a factory
and you would have got a good wizard builder and it would have improved.

Stef