The folder Custom Units gets used by the VectorScript units as introduced in interiocad 2008. As its name (and the names of its subfolders) is not visible to the user, those do not need to get translated. The names can be changes in the VectorScript code, though.
The names of the particular text files in the subfolders are however linked to the paramter names in the object info palette. Thus those need to be adjusted according to the translation of the parameter values in the VectorScript editor.
All text files can be edited by a fully featured unit editor. If you need to adjust part dimensions etc. to fit your local needs, copy them over to the corresponding folders for the unit editor, edit them, move them back and you're done.

christoph.eckert@extragroup.de
20071012

