Thanks so much for your quick reply. I tried removing config_4.xml; did not work. I tried temporarily disabling both antivirus and firewall; did not work.
I have installed Viewer 184.108.40.206 over 220.127.116.11 on several other machines (Windows 7 and Windows XP) on the same network, and all of these other machines run Viewer 18.104.22.168 with no problems.
This may be a clue: I noticed that on the one machine (Windows 7) where Viewer 22.214.171.124 will not run, Windows File Explorer displays the rutview.exe file with a blue and yellow User Access Control (UAC) shield (see attached picture).
The machines where Viewer 126.96.36.199 runs with no problem do not display this symbol (see attached picture).
I tried running rutview.exe as an administrator, but that had no effect (I'm logged on as an administrator anyway).
After installing Viewer 188.8.131.52 over Viewer 184.108.40.206, Viewer will not launch. Clicking on the Viewer icon produces no response whatsoever, not even an error message. I've tried launching directly by clicking on the executable (rutview.exe) and tried launching Viewer 220.127.116.11 in Safe Mode, both with the same result.
When I uninstall 18.104.22.168 and reinstall 22.214.171.124, Viewer launches with no problem.
Why does 126.96.36.199 run without issue but 188.8.131.52 won't even launch?
Using latest version of Android RU Viewer and latest version of RU Host, I'm getting "Access violation at address 82367224, accessing address 408FFFFC" error whenever I attempt to edit the "Caption" field in the Properties section of the computer to which I'm trying to connect. The "Caption" field is populated by the remote computer's Internet-ID by default (i.e. Caption field and Internet-ID fields initially contain the same values), and I only get the error when the value of the Caption field is changed from the default value to a text value representing the remote computer's description. Before changing the Caption field, I can connect to the remote computer with no problem. I've tried clearing the RU Viewer app cache and user data, and deleting and re-installing the Android RU Viewer app. I've observed this behavior over several years through several different RU versions and Android operating system versions (currently Android 10). Works great for a while, even when changing the Caption field, then all of a sudden start getting the Access Violation error, all remote computer ID's and properties get wiped out, but still can access remote computers if Internet-IDs are re-entered and Caption field is left with the Internet-ID default value in the Caption field. How can this be resolved?
After installing v. 11.29.2, RU Mobile crashes with the errors shown in the attached screenshots. I can start RU Mobile running, but when I enter a remote address and try to connect, I get either one of the two error messages followed by being returned to the Android OS home screen. I'm running Android 4.4.4 on a Motorola Droid Mini, and have not had any problems connecting with a remote session until now (I've been using it successfully for several years). Rebooting the phone and uninstalling/reinstalling RU Mobile does not help.