> In certain moment we gave 'public' rights to UDF directory. It
> didn't helped at
> all.
>
> Marcin

OK -
1. make sure you are not using the full path to UDF - it's a relative path
expected.
so as said before
UdfAccess = Restrict UDF
is enough.
2. change the UDF directory permissions to firebird/firebird
3. tell me what UDF libs you are trying to use. the default ones? or
something you compiled?
Alan