1.4) What non-Unix ports are available?

Starting with version 8.0, PostgreSQL now runs natively on Microsoft 
Windows NT-based operating systems like Win2000, WinXP, and Win2003. 
A prepackaged installer is available at http://pgfoundry.org/projects/pginstaller.
MSDOS-based versions of Windows (Win95, Win98, WinMe) can run 
PostgreSQL using Cygwin.