Firebird in IBExpert throws errors while accessing some stored procedure

Question

I am completely new to Firebird; I have been given a Firebird 2.5 database (by our client) - XYZ.fdb

I have registered this XYZ.fdb database in IB Expert.

I a

Answer 1

The resulting error might be created by an access violation from IBExpert, but the reason is definitely a missing UDF library, for example a .dll file called rfunc.dll or freeadhocudf.dll or whatever it is called.

To find the name of the missing .dll, check the UDFs used in the database by clicking on UDF folder in IBExpert database registration.