Use the TADPhysIBDriverLink component to link the FB/IB driver to an application. In general it is enough to only include uADPhysIB unit into your application uses clause. 

The TADPhysIBDriverLink component may be used to specify:

• VendorHome - the Firebird / Interbase installation root folder;
• VendorLib - the name and optional path to the Firebird / Interbase client library.

All properties have default values appropriate for most case. To have an effect all property changes must be performed before first connection through this driver or use the Release method.

TADPhysIBDriverLink = class(TADPhysDriverLink);

Configuring Drivers, Connect to Interbase or Firebird