TeraCopy Portable
This is a PortableApps.com compatible installer. Plug in your flash drive and run setup, it will install TeraCopy to \PortableApps\TeraCopy Portable\ or any folder of your choice.
Download: http://www.codesector.com/files/teracopyportable.paf.exe
Updating to latest version
Install latest non-portable version of TeraCopy and copy TeraCopy.exe to \PortableApps\TeraCopy Portable\ or other folder (where portable version is installed).
The best way to use this portable version is to integrate it in Total Commander or another file manager.
Total Commander Integration
Create Copy button:
Command: %COMMANDER_DRIVE%\PortableApps\TeraCopy Portable\TeraCopy.exe
Parameters: Copy *"%L" "%T"
Create Move button:
Parameters: Move *"%L" "%T"
Create Delete button:
Parameters: Delete *"%L"