To install the Dynadock U3.0 under Windows 8 no driver utility (e.g. from the disc) is necassary.
There are only 3 things to do:
1. Download and install the latest graphic driver from this page: http://www.displaylink.com/support/downloads.php
2. Connect the Dynadock U3.0 to the power socket
3. Connect the Dynadock U3.0 to your pc or notebook via usb-cable
The Dynadock installs all needed drivers automatically!