Acrylic DNS Proxy Home Page

Acrylic is a local DNS proxy for Windows which improves the performance of your computer by caching the responses coming from your DNS servers and helps you fight unwanted ads through a custom HOSTS file optimized for handling hundreds of thousands of domain names and with additional support for wildcards and regular expressions.

When you browse a web page a portion of its loading time is dedicated to name resolution (usually from a few milliseconds to 1 second or more) while the rest is dedicated to the transfer of the web page contents and resources to your browser. What Acrylic does is to reduce the time dedicated to name resolution for frequently visited addresses closest to zero possible. It may not seem such a great optimization but in a few weeks of Internet browsing you will probably save an hour or so, which is definitely not such a bad thing. Furthermore Acrylic's sliding expiration caching mechanism, simultaneous forwarding to multiple DNS servers and support for background DNS updates are able to improve your browsing experience independently of the browser.

With Acrylic you can also gracefully overcome downtimes of your DNS servers without disrupting your work, because in that case you will at least be able to connect to your favourite websites and to your email server.

Another good thing is that Acrylic is released as open source, which means that it's free and its source code, written with Borland Delphi, is freely available to anyone under the GNU General Public License.

Acrylic files are distributed from external servers. If you want to check the integrity of the offered files have a look at the Acrylic Hashes page.

For a complete history of Acrylic's releases have look at the Acrylic Change Log page.

How do I install Acrylic?

Step 1: Installation

Note: Installation should be performed by a user with administrative rights over the system.

Step 2: Configuration

Upon installation Acrylic is preconfigured to point to the Google Public DNS servers.

You can always change Acrylic's configuration by selecting the "Open Acrylic Configuration" menu item of the Acrylic UI desktop application in your Start menu (for detailed informations about the available configuration options have look at the Acrylic Configuration page) or by editing the AcrylicConfiguration.ini file with a text editor of your choice. You can also change Acrylic's custom HOSTS file by selecting the "Open Acrylic Hosts" menu item of the Acrylic UI desktop application (for detailed informations about the available features have look at the Acrylic Hosts page) or by editing the AcrylicHosts.txt file with, again, a text editor of your choice.

In order to use Acrylic you have to tell your computer that the DNS servers to be contacted for name resolution is no more your ISP's but Acrylic. How to do it depends on the version of the OS you are running:

Note: If you have a firewall on your computer you may have to create a rule to allow incoming traffic directed to Acrylic executables: AcrylicService.exe and AcrylicConsole.exe.

How do I uninstall Acrylic?

Just select the "Uninstall" Start menu item inside the "Acrylic DNS Proxy" folder.

The uninstall process will take care of stopping the service and deleting all traces of Acrylic from your computer.

How do I upgrade Acrylic?

Since a specific upgrade path is not provided for Acrylic the best way to upgrade is simply to uninstall the old version and install the new one.

Before uninstalling the old version you may want to make a backup of your configuration and custom HOSTS files as they will be all deleted by the uninstall process.

Note: On Windows 10, while trying to install the new version, you might see a "The service has been marked for deletion" error. This usually happens when Process Explorer by Sysinternals, the Task Manager or the Microsoft Management Console are open while uninstalling the old version. In this case close all the aforementioned applications (which should trigger the removal of the service by the OS) and retry installing the new version again.

How do I contact the author?

If you have questions please first have a look at the Frequently Asked Questions page.

If you have improvements to suggest, problems to report or whatever you can contact me at msmfbn [AT] gmail [DOT] com

How do I report a problem in Acrylic?

In case you are reporting a problem in Acrylic it would be nice if you:

  1. Activate the debug log.
  2. Try to reproduce the problem.
  3. Send me your AcrylicDebug.txt and AcrylicHosts.txt files along with a description of what you expected from Acrylic and what you got from it instead.

To activate the debug log you can use the "Activate Acrylic Debug Log" menu item in the Acrylic UI desktop application that you can find in your Start menu.