At 12:22 AM 19/02/2004 +0000, you wrote:

>I can declare the UDFs from IB_UDF and they work fine until I close
>the database. After I restart the databse, the UDF definitionis
>still there but SQL SELECT, etc. cannot find the UDF entry point. I
>get a message sayin ISC ERROR CODE 335544343.
>
>Invalid request BLR at offset 8. Function SUBSTRLEN is not define.
>Module name or entry point not found.
>
>I have placed the UDB.DLL in many locations. FB/UDF, FB/My
>Application Folder, and WINDOWS/SYSTEM32. Nothing helps.
>
>How do I get FireBird to automatically reload my UDF declaarations?

What server version?

/hb