Apps that can be included without modification

ms4w

Download the zip file of ms4w from ms4w.com. Extract the ms4w folder from within the download and place it in the apps folder of your Portable GIS installation.

ogr2osm

Download the zip file of ogr2osm from github.com/pnorman/ogr2osm. Extract the resulting folder into the apps folder of your Portable GIS installation, ensuring it is named ogr2osm. See wiki.openstreetmap.org/wiki/Ogr2osm for usage. The python bindings are included.

Loader

Download a zip file of Loader from github.com/AstunTechnology/Loader. Place the Loader folder into the apps folder in your Portable GIS directory.