Portable package was made especially for people who wants to launch UltraDefrag from USB-flash without an installation. If you have selected a portable app to be installed, the installer will write all needed files into one directory on your hard drive. To get access to that directory use shortcut
Start > Programs > UltraDefrag > Portable package. Or find it manually in %windir%\UltraDefrag. Place all files contained there on any removable media, p.a. on your USB-flash. Than you can run UltraDefrag on any compatible computer without an installation. Here is more information about portable applications.

There is one configuration file used by portable application. Here you can specify some options, most useful is a language definition. The file has a PORTABLE.X name. The complete example is here:

[Bootsplash]
Show=1
[i18n]
Language=Hungarian

Set Show=0 in the [Bootsplash] section to disable bootsplash on startup.

Set Language=LanguageName to choose your preferred language to be used by portable GUI. Available languages are: Catala, Chinese (Simplified), Chinese (Traditional), Czech, Dutch, English (US), French (FR), German, Greek, Hungarian, Italian, Japanese, Korean, Latvian, Polish, Portuguese, Portuguese (BR), Russian, Slovak, Slovenian, Spanish (AR).