To use the MSI installer, follow these steps:

   1. Download the MSI installation package and place it to the 
   \WHSERVER\Software\Add-ins folder (replace WHSERVER by the name of your WHS machine).
   2. Start the WHS Console.

   3. Click the Settings button, and navigate to the Add-ins page.

   4. On the Available page, you should now see the entry for avast! Antivirus. Click the Install button.


In case you later decide to uninstall the program, you can use that via the WHS Console
 as well (avast! WHS Edition will have an entry in the list of installed add-ins, from which it can be uninstalled).