Windows DSN Configuration - ODBC Driver for PostgreSQL
After installing the driver, create a DSN for PostgreSQL in the ODBC Data Source Administrator.
ODBC Data Sourcesin the Windows search box and choose the application that matches the bitness of the third-party application (32-bit or 64-bit). You can also open ODBC Data Sources from Control Panel > Administrative Tools. Note that before Windows 8, the icon was named Data Sources (ODBC).
C:\Windows\SysWOW64\odbcad32.exeto create a 32-bit DSN or
C:\Windows\System32\odbcad32.exeto create a 64-bit DSN.