Making control of the video adapter necessarily via the associated program (device icon in the taskbar next to the time / date), via Control Panel / Appearance and Personalization / screen resolution is desperate, because the changes are completely ignored: supplement. As other reviewers have also noted: Not the CD use to install! The drivers are loaded when the adapter is plugged in via USB.
Update from 30.03.2015. Difficult is it when (I call him now monitor 2) would have the same image as on the main screen (Monitor 1) on the extra monitor. Actually, this should be the easiest option.
Extend the desktop onto monitor 2: 1.Versuch through the Windows display settings brings nothing, here means that Monitor 2 now on Monitor 1 right connecting (no difference to "expand without desktop enhancement on Monitor 2"). On the left monitor clicked icons to open a window on the monitor 2.
2.Versuch: selection of "mirrors" on the device icon in the taskbar: Really bad, now you have on both monitors Windows Screen 2, ie only the Windows wallpaper without icons and mouse cursors. Since you can no longer do on your computer - Best Parental Control! - Except: Display adapter disconnect, then you come back to the main screen and uninstall Display Link software + drivers.
After x-times will uninstall and install ultimately the (only) Successful Path: About the device icon Select "as the primary monitor use" - then you have to monitor 2 the desktop and then select the "mirroring" function. Now finally show both monitors the desktop and it can start programs and remain on the screen ...
For the hour I suffered frustration subtract 1 point!