Can a "server" disconnect the "viewer"

[ZoRaC]

In windows remote assistance the use who recieves the "help" can disconnect the "helper" pressing "esc".

Does PCHW also have such an option to disconnect the "helper"?

[YY]

Yes. At the server side, the client can right click the PHW icon at Sys Tray, then select "Exit" to drop the connection.

[ZoRaC]

Ok, so there is no key-shortcut aswell?
The user actually has to gain control over the mouse and use the systray-icon?

[YY]

I don't aware PcHelpWare having this feature. However, you can use a keystroke macro tool (e.g. www.autohotkey.com) to assign a key to run this script:
taskkill /F /IM pchelpware.exe

This script will terminate the PHW and thus drop the connection