Windows 8.1 on one puter Win 7 on another. Host (v6.8) installed on both. Viewer (v6.8) is on a flashdrive. Access from the win 7 to the win 8.1 works as advertised. However, access from the Win 8.1 to the Win 7 machine will not access unless I manually launch the Host with the desktop shortcut. After that, it works fine. I uninstalled using Revo and reinstalled. No joy. New guy, treat me gently.