Why do I get error "GDS32.DLL not found" when using the InterBase ODBC driver?

The Easysoft InterBase ODBC driver uses this InterBase DLL to access the InterBase Server. It must therefore be present on the machine that you install the Easysoft driver on.

The DLL is an InterBase installation option and will be called something like client-only software. The Easysoft InterBase ODBC driver distribution doesn't include or install this DLL. You need to use your InterBase distribution to install it.