As the description states, how can I backup or export the settings for the Viewer? Is it possible to save my settings from the installed version of the Viewer and use them with the portable version?
There are two xml files in the "C:\Users\<user>\AppData\Roaming\Remote Utilities Files\ : config_4.xml and connections_4.xml .The first one contains the Viewer optons/settings, the second file is the address book. So you can copy both and drop them into the portable Viewer folder, alongside the rutview.exe.
This brings me to another question - are there any feature limitations or anything else that might inhibit full functionality on the portable version of the Viewer compared to the installed version?
Nothing I know of. The portable Viewer should run exactly as the installable version does.