BDE & Informix connection

Hi,

I have a problem with Borland /Inprise / BDE 5.0  Informix SQLLinks
driver. I use my Informix database with Informix ESQL/C 7.20 and working
well.
If I want to connect from BDE there is error message :

"Cannot load and IDAPI service library.
File: SQLINF32.DLL
Alias: ..... "

The BDE error number : 8458

The SQLINF32.DLL file is in the BDE directory wich is in the path.

What is the right solution ?

Thanks,
Zoltan Gorfol