Neoware c50 - Thin Client User Manual page 239

Display Configuration
require user confirmation. The user will be warned by a message box
when the thin client is being shadowed.
User may not abort shadowing request
Default: Unchecked
This determines whether the user can abort a shadowing request by
using the end shadowing keyboard shortcut.
Shadowing password
This enables you to specify a password that has to be entered when a
shadow connection is attempted using a VNC client.
Desktop Settings 225