> UDF for 64bit FB have to be compiled by 64bit compiler.
> There is no (curent) posible to run 32bit UDF on 64 bit FB.
>
> On Windows UDF is standart DLL and DLL for 32 is not compatible with DLL
> for
> 64.

That is irrelevant. He is running a 32 bit Firebird on Windows 64, so he will still need to use 32 bit DLLs.
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