Our software library provides a free download of PostGIS 2.0. The following versions: 2.0, 1.5 and 1.4 are the most frequently downloaded ones by the program users. PostGIS was developed to work on Windows XP, Windows Vista or Windows 7 and can function on 32-bit systems.
PostGIS is categorized as Development Tools. This free tool was originally created by Refractions Research. Our built-in antivirus scanned this download and rated it as 100% safe. The current setup file available for download requires 11.2 MB of hard disk space.
From the developer:
PostGIS is unique software that adds support for geographic objects to the PostgreSQL object-relational database.
In effect, PostGIS "spatially enables" the PostgreSQL server, allowing it to be used as a back-end spatial database for geographic information systems (GIS), much like ESRI's SDE or Oracle's Spatial extension.
You may want to check out more software, such as gshp2pgsql, Global Mapper or Thuban, which might be similar to PostGIS.