The driver setup DLL contains the ConfigDriver and ConfigDSN functions. ConfigDriver performs driver-specific installation tasks, such as entering driver-specific information into the registry. ConfigDSN maintains driver-specific information about data sources in the registry. For a complete description of these functions, see Chapter 22, “Setup DLL API Reference.”
The driver setup DLL is written by the driver developer. It can be part of the driver DLL or a separate DLL.