PostgreSQL Libraries for ARCGIS Server (Register Database with ArcGIS server)

PostgreSQL Libraries for ARCGIS Server (Register Database with ArcGIS server)

What correct Libraries to use ??
Well there are four type of client libraries

1. pg_client_windows64
2. pg_client_windows86
3. pg_client_linux64
4. pg_client_linux86

1. pg_client_windows64
   This include client files required to make connection from 64 bit windows platform client to PostgreSQL
   libeay32.dll, libintl.dll, libpq.dll, and ssleay32.dl
2. pg_client_windows86
   This include client files required to make connection from 32 bit windows platform client to PostgreSQL
    libeay32.dll, libiconv-2.dll, libintl-8.dll, libpq.dll, and ssleay32.dll
3. pg_client_linux64
   This include client files required to make connection from 64 bit linux platform client to PostgreSQL
    libpq.so, libpq.so.5, and libpq.so.5.3.
4. pg_client_linux32
   This include client files required to make connection from 32 bit linux platform client to PostgreSQL

Required libraries need to be copied to 

C:\Program Files\ArcGIS\Server\bin