Using ODBC (32-bit and 64-bit) on 64-bit Windows 64-bit Windows has some surprising and counterintuitive setup and behavior around 32-bit and 64-bit ODBC. Many 64-bit environments still support 32-bit applications, and these require 32-bit ODBC drivers and DSNs, so it's important to understand how this all works. Both the 32-bit and 64-bit ODBC Administrator are named odbcad32.exe. They are differentiated by their filesystem location.

The 32-bit ODBC Administrator is found at%systemdrive%/Windows/ SysWoW64/odbcad32.exe. This controls 32-bit ODBC drivers, which are required by 32-bit client applications. (The 32-bit ODBC Administrator cannot be accessed through the Control Panels interface; the Data Sources (ODBC) control panel is the 64-bit ODBC Administrator.) Counterintuitively, the 64-bit ODBC Administrator is found at%systemdrive%/Windows/System32/odbcad32.exe.

This controls 64-bit ODBC drivers, which are required by 64-bit client applications.

Eee Pc 900 Windows Xp Drivers. I have an old 32-bit software program that connects to an Oracle database but only works with the Microsoft ODBC driver for Oracle. It does not work with the more up.