64-bit ODBC driver
------------------

On a 64-bit (x64) Windows installation, choosing to install
the SQL/R ODBC driver causes both the 32-bit and the 64-bit
ODBC drivers to be installed.

The 64-bit ODBC driver (sqlro64.dll) is installed into the
WINDOWS\System32 directory (C:\WINDOWS\System32\sqlro64.dll).

The 32-bit ODBC driver (sqlro32.dll) is installed into the
WINDOWS\SysWOW64 directory (C:\WINDOWS\SysWOW64\sqlro32.dll).

Please note that on 64-bit Windows there are two separate ODBC
control panels present. The default ODBC control panel, located
in the Administrative Tools control panel folder, is the 64-bit
ODBC control panel. This is used to manage ODBC data sources
that use a 64-bit ODBC driver, to be used by 64-bit programs.

To invoke the 64-bit ODBC control panel, use:
Control Panel -> Administrative Tools -> Data Sources (ODBC)

The 32-bit ODBC control panel is named odbcad32.exe and is
located in the WINDOWS\SysWOW64 directory (by default:
C:\WINDOWS\SysWOW64\odbcad32.exe). This is used to manage
ODBC data sources that use a 32-bit ODBC driver, to be used
by 32-bit programs.

To invoke the 32-bit ODBC control panel, use:
Start Menu -> Programs -> SQLR -> 32-bit ODBC Administrator