Hmm, when opening regular connection (not services), I get "Cannot transliterate character between character sets" from server and it even does not try to touch the filesystem. The isc_dpb_utf8_filename is included in DPB. BTW same happens if I use Jaybird, but maybe both me and Mark did same mistake.
-- Mgr. Jiří Činčura https://www.tabsoverspaces.com/ Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel