Hello,
See
http://multicommander.com/docs/InstallationPortable Installer (.zip)
The portable installer is named MultiCommander_x64_Portable_([version]).zip or MultiCommander_win32_Portable_([version]).zip
The portable package is a zip archive that you only need to unpack to a folder. Just make sure that you keep the folder structure from the zip package.
The portable version is the same as the installed version. The difference is that the portable version is configured to store all settings and configuration in the folder that Multi Commander is installed in and run from.
The portable version does not save anything to the registry or to the user account folder. Everything is saved in the Multi Commander folder. So the program must have write permissions to the folder that you start Multi Commander from.
This version is ideal to be installed to - and run from - a USB memory stick.
Regards.