SparkLabs Blog.

The latest news and releases.

Viscosity Featured in pfSense Book!

We here at SparkLabs are big fans of pfSense, using it to manage both our work and home networks. We also know a great number of Viscosity users connect to routers running pfSense, so we were very happy to see Viscosity featured in pfSense: The Definitive Guide by Christopher M. Buechler and Jim Pingle.

"If you use OpenVPN frequently, Viscosity is a much nicer client and well worth the cost."

As well as covering a great deal about network setup, the book also contains an in depth section dedicated to setting up pfSense to act as an OpenVPN server. It contains a great deal of information about how to configure and use Viscosity to connect to your pfSense router.

We highly recommend picking up a copy of pfSense: The Definitive Guide if you are interested in setting up your own pfSense OpenVPN server and using Viscosity to connect to it.

Check out the website for more information.

Viscosity 1.1 Released

Version 1.1 of Viscosity, a free update, is now available! This new version includes many new enhancements, such as:

Version 1.1 Mac Release Notes:

PKCS11 (token/smartcard) support
Ability to run AppleScript scripts when a connection connects/disconnects
IPv6 Support
DNS servers/domains can be edited using the GUI
Support for pushed WINS servers
Connections can be duplicated
Greater controllability using AppleScript
Editing enhancements
Updated TUN/TAP drivers
Various bug fixes and enhancements

The 1.1 update can be automatically installed from inside Viscosity, or downloaded and manually installed. For support with this version please visit

New Website!

We've finally put the finishing touches on our new website, so welcome! Feel free to take a look around - hopefully you'll like what you see!

Our new site was a long time coming, however it brings together important information about what we are up to, as well as providing better support for our products. Some of the big improvements include:

  • New Support Page: We've put together a completely new support page with a much larger and more detailed Knowledge Base for all of our products. We'll even be significantly expanding the contents over the coming weeks, so if you run into a problem or have a question you'll have it solved in no time!
  • Faster Downloads and Updates: All software downloads and updates are now distributed via a worldwide Content Delivery Network. Everyone should now see significantly faster downloads and in-app updates, particularly for those users outside the USA. Our web server is certainly sighing in relief!
  • Newsletter & Blog: We encourage you to subscribe to our new newsletter. We'll only be sending it out when we have important information, such as new software, updates, and beta releases, so you won't get spammed to death! In addition, we'll be posting the latest SparkLabs news, thoughts, and answers to common questions on our Blog.
  • Twitter: We've finally joined the Twitter ranks, and hope you'll stop by and say hello, or follow us to keep up to date with software releases and news.

Over the coming weeks we'll be adding more content, and posting up more information and beta signups for upcoming software (such as Viscosity Server). So don't forgot to stop by later on!

For now, we hope you enjoy the changes. Feel free to stop by the forums if you have any feedback or comments about the new site or our software!