What is it?
Portable GIS is a windows-only set of open source GIS packages ready to install or copy onto a USB stick, and run with no additional configuration.
What is it not?
It’s not OSGeo-Live or OSGeo4W
OSGeo-Live provides you with an entire open source GIS operating system, but one that you have to boot into, so it’s separate from your day to day environment. Portable GIS provides a limited subset of the same tools, but accessible in your own environment.
OSGeo4W provides a really easy way of installing all the open source GIS tools on windows, without configuration headaches. Portable GIS provides a subset of those tools, but without the need for installation.
What does it contain?
Current Version 5.8.1
Desktop GIS packages QGIS version 2.18.11 LTR
FWTools (GDAL and OGR toolkit)
Apache2 and Php5
PostgreSQL (version 9.1)/Postgis (version 2.1)
Mapserver 5.6 and 6, OpenLayers.
Python 2.7 with GDAL 1.9 libraries and Psycopg2
Loader- for loading gml such as Ordnance Survey Mastermap into a PostgreSQL Database
Utilities- portable firefox, pdf reader and text editor
Suggestions for additional software to include are always welcome, but inclusion may not always be possible due to build or logistical concerns.