Subject Re: [firebird-support] pointer returned by FREE_IT not allocated by ib_util_malloc
>Is the udf linked properly (meaning externally linked to the proper >ib_util_malloc) ?

Given that it works with everything but 2.5 I would have to say yes? But that raises the questions: 

How would I know?

And why should the link be any different for 2.5 than for 2.0?

It all just hooks to a DLL, doesn't it?