Hi,

> When I open a database that uses a custom UDF, I get "ISC ERROR CODE:
> 335544831 Access to UDF library XXX.dll is denied by server administrator"
>
> It works fine in Windows XP, but now I have installed the FB 1.5 and
> my UDF dll under Windows 2000 Server.
>
> I have revised that the XXX.dll exists, I have rebooted the machine,
> file privileges are ok
>
> Somebody can give me a clue or what to check please?

Firebird.conf -> look for
" External Function (UDF) Paths/Directories "


Martijn Tonies
Database Workbench - tool for InterBase, Firebird, MySQL, NexusDB, Oracle &
MS SQL Server
Upscene Productions
http://www.upscene.com
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