D-Link DPH-50U Quick User Manual page 12

When you see the following screen, press the Finish button.
STEP 3:
When the installation completes you should see the following
message appear near your system tray and a new telephone icon (circled in
red below) in your system tray as shown below.
The telephone icon indicates that the DPH-50U software is installed and
running and that you can start making calls via DPH-50U and the DPH-50U
USB Phone Adapter for SKYPE.
You will see a new program group named D-Link USB Phone Adapter for
SKYPE, accessed from the Start button -> All Programs as shown below.