Postgres is best downloaded from Enterprise DB: http://www.enterprisedb.com/products-services-training/pgdownload. The Postgres installer then runs stack builder to download and install the additional packages. The following additional packages need to be installed:
The following are optional:
H:\>psql
psql (9.3.2)
WARNING: Console code page (850) differs from Windows code page (1252)
8-bit characters might not work correctly. See psql reference
page "Notes for Windows users" for details.
SSL connection (cipher: DHE-RSA-AES256-SHA, bits: 256)
Type "help" for help.
cmd.exe /c chcp 1252