> By the way, when I run my compiled PowerBuilder application
> (i.e. not from within the PowerBuilder IDE), everything works
> as it should. The UDF directory is under the application
> directory, there is no firebird.conf file needed, and it
> finds the UDFs.

It sounds like PB is loading a different client lib (not the
embedded library).

I suggest you try using something like Process Explorer, it
is very useful for discovering exactly what instance of a DLL
is being loaded by processes. See:

http://technet.microsoft.com/en-au/sysinternals/bb896653.aspx

When running the app under PB highlight it and look at the
"View DLLs" window. Place the house over the fbclient.dll name
and the path shows in a popup hint.

Once you find out which library PB is loading you may be able
to work out why and fix it.

--
Geoff Worboys
Telesis Computing