Indeed, we have stopped the support for VisualDMX. The link in Julien's post tells you more details about it.
We would love to welcome you as a Cuelux user. If you might consider stepping up to Cuelux then please give us a call at +31235512030 so we can make you an offer for upgrading. The Cuelux software is technically much more advanced and we would have all the support available to you.
cheers,
Maarten