hello
portable mode: read it from dialog, to be sure 

About xml config files: I have them on two places : <mc install dir>\Config and <mc install dir>\SessionConfig\Config.
Latest ones are in the former, but latter also has a multicommander.ini very fresh, so am not sure which one is really used. I attach those in former.
FYI, here is my folder tree in MC:
├───Config
│   ├───CfgProfiles
│   ├───Extensions
│   │   └───MultiFileViewer
│   ├───Presets
│   │   └───zFileManager
│   ├───Scripts
│   └───TOTD
├───Extensions
│   ├───FS7Zip
│   ├───FSFTP
│   ├───FSRAR
│   ├───FSRegistry
│   ├───MCAudioTools
│   ├───MCLanEditor
│   ├───MCPictureTools
│   ├───MCSpecial
│   ├───MCUtils
│   ├───MCVideoTools
│   ├───MFTools
│   └───MultiFileViewer
├───Logs
├───SessionConfig
│   ├───Config
│   │   └───Extensions
│   │       └───MultiFileViewer
│   ├───History
│   ├───Logs
│   └───Misc
└───UserData
    ├───Multi Rename
    │   └───Undo
    └───Video Tools
        └───MediaDB
PS: xml files could not be uploaded (filtered by forum). I should have zipped them.