Using 32-Bit Applications with 32-Bit Drivers

You can run 32-bit applications with 32-bit drivers on Windows 95 and Windows NT. The 32-bit applications and the 32-bit drivers use the Win32 API.

Architecture

The following figure shows how 32-bit applications communicate with 32-bit drivers. The application calls the 32-bit Driver Manager, which in turn calls 32-bit drivers.

Using 32-Bit Applications with 32-Bit Drivers

Important   Do not use the 32-bit thunking installer DLL on Windows NT. Although it has the same file name as the 32-bit installer DLL, it is a different DLL.

Administration

You can manage data sources for 32-bit drivers through the ODBC or 32-bit ODBC Control Panel device.

Components

The ODBC component of the Data Access SDK includes the following components for running 32-bit applications with 32-bit drivers. They are in the \Redist directory.

File Name
ODBC32.DLL 32-bit Driver Manager
ODBCCP32.DLL 32-bit installer DLL
ODBCAD32.EXE 32-bit Administrator program
ODBCINST.HLP Installer Help file
MSVCRT40.DLL C run-time library