When trying to update the latest build from Acunetix WVS, you encounter the following error:
Unable to download http://www.acunetix.com/download/ fullver8/2013_03_08_01_webvulnscan8.exe. Try again later.
Acunetix has recently changed its update mechanism to a new and secure product download system. This update has been implemented in build 20130205. Starting from 8 March 2013, old builds cannot be updated automatically. The above error will be shown when you try to update an old WVS build directly from "Product Updates"
To remediate the issue, you will need to update your installation manually. Download the update from http://www.acunetix.com/download/fullver8/. You will need your license key to download the latest build.
Note: This fix only applies to builds prior to build 20130205. If you are running this build, or above, and are unable to download the updates automatically, kindly open a support ticket by emailing firstname.lastname@example.org