| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic |
|---|---|---|---|---|---|---|---|
Data Source Names and 64-Bit Operating Systems |
Learn how to build and run an application as a 32-bit application on a 64-bit operating system by creating the ODBC data source with the ODBC Administrator. |
markingmyname |
maghan |
03/06/2017 |
sql |
native-client |
reference |
[!INCLUDE SQL Server]
Important
[!INCLUDEsnac-removed-oledb-and-odbc]
To build and run an application as a 32-bit application on a 64-bit operating system, you must create the ODBC data source with the ODBC Administrator in %windir%\SysWOW64\odbcad32.exe.
A 64-bit Windows operating system has two odbcad32.exe files:
-
%SystemRoot%\system32\odbcad32.exe is used to create and maintain data source names for 64-bit applications.
-
%SystemRoot%\SysWOW64\odbcad32.exe is used to create and maintain data source names for 32-bit applications, including 32-bit applications that run on 64-bit operating systems.