Unfortunately, we couldn't reproduce the issue - I have just tried updating Viewer of version 220.127.116.11 to the latest version 18.104.22.168 via the Self-Update feature and it worked as expected, i.e. Viewer of the latest version was launched right after it finished updating and I'm able to run Viewer from its desktop icon or the respective icon in the Windows Start menu. Perhaps, the issue might have been caused by some antivirus/firewall activity. Could you please, try the following and see if this helps to resolve the issue? 1. Fully exit the Viewer File -> Exit. 2. Locate the file config_4.xml in the C:\Users\[Your_username]\AppData\Roaming\Remote Utilities Files\ folder. Please note that the AppData folder might be hidden by default in which case you need to enable "Hidden files and folders" in Windows Explorer settings. 3. Remove the file "config_4.xml" from the folder. This will reset the Viewer settings/options. Your address books won't be affected by this action. However, you will need to register Viewer with your license key once again.
In addition, if you have any antivirus/firewall software running on the Viewer machine, please try adding your Viewer installation folder to the exception list as described here.
Please let me know if this helped to resolve the issue.
I'm glad to hear you've found the solution! Please note that you can also re-assign any of the available hotkeys, including the F12 hotkey for the "Change view mode" command, to your custom values - this can be done in the Viewer's Options -> Hotkeys tab.
Please note that when Internet-ID connection is used, Host and Viewer are connected via an intermediary server - it might be our public servers or your self-hosted RU Server. This means that Viewer and Host machines communicate with each other via the server. In case if you want your Viewer to connect to a remote Host directly, i.e. without any servers between them, then please consider using Direct connection instead - this connection type does not require any intermediary servers in-between Viewer and Host.
However, please note that all traffic that Remote Utilities sends over the network is encrypted via TLS 1.2. The data encryption is always on by default and cannot be disabled by the user. Transferred data is encrypted regardless of connection type and user license. For more information please also see our Security page.
In case of Agent the UAC prompt simply requests the elevated privileges, so when selecting "Cancel" on the UAC prompt, you're just denying Agent from running with admin privileges (this will run Agent under the current Windows user without admin rights), not from running at all. I will forward this to my coworkers for a review to see if we could add this information to our Documentation about Agent.