The ICU libraries are always installed with the full set of ICU conversion and collation data. The settings in the configuration file NATCONV.INI apply to the A format. For the U format, the corresponding checks (for example, when a character is translated to upper case) are done via the ICU library.
Note:
For obtaining information on the ICU version and the supported code pages, you can
use the SYSCP utility
which is available with Natural for Windows.