I have the latest 64 bit version of PostgreSQL. I am running Win 7 64 bit. I had installed the ODBC driver (via the initial installer) when I installed PG, and upgraded it t
Installing psqlODBC on 64bit Windows
Though you can install 32 bit ODBC drivers on Win X64 as usual, you can't configure 32-bit DSNs via ordinary control panel or ODBC datasource administrator.
How to configure 32 bit ODBC drivers on Win x64
Configure ODBC DSN from %SystemRoot%\syswow64\odbcad32.exe
%SystemRoot%\syswow64\odbcad32.exeYou may have to play with it and try different scenarios, think outside-the-box, remember this is open source.