Apps that require a bit more work

PostgreSQL and PostGIS


Download the zip file (32bit) for PostgreSQL 10.5 from (the section for “Advanced Users”).

Extract the enclosed pgsql to the apps folder.

Create a user on your pc called pgis with the password pgis and open a command prompt as that user. Change directory to the apps\pgsql\bin directory and initialise the db in the following manner:

> initdb.exe --pgdata=..\..\..\PGDATA --username=pgis --locale=english_uk --encoding=UTF8

Copy the files from the pgsql folder in the Portable GIS repository into your pgsql folder, overwriting as necessary.

(At this point you should probably transfer your build to an actual USB stick so you can start postgresql using the batch file start_pgsql.bat and deal with any error messages)


Download the zip file (currently the 2.5 version) from and extract the contents into the pgsql directory, overwriting if needed.

Create a new template database (called, eg template_postgis) and run create extension postgis in a sql window to enable postgis. To convert the database to a template, run the following in a sql window:

UPDATE pg_database SET datistemplate = true WHERE datname = 'template_postgis';GRANT ALL ON geometry_columns TO PUBLIC; GRANT ALL ON spatial_ref_sys TO PUBLIC


Download 32bit stand-alone qgis installer (version 3.4.5) from the QGIS Download Site and install it on a windows pc. Copy the C:\Program Files\QGIS 3.4 folder into the apps folder, renaming it qgis, and then apply the files from the qgis folder in the Portable GIS repository to the same location, over-writing as necessary.

Java 8 jdk

Oracle’s jdk8 is provided in the Portable GIS repository but if you wish to build your own follow the instructions below. These instructions originally came from and are reproduced here in case that site is no longer available.

  • Download a copy of the Windows 32bit (X86) jdk version 8 executable from oracle

  • Open the downloaded executable with 7-zip, and the extract the file inside to a tools folder.

  • At this point you should have the following folder structure jdk_8\tools

  • Open a command prompt inside the tools directory and run the following command, substituting the correct drive letter:

    > for /r %x in (*.pack) do C:\jdk_8\tools\bin\unpack200 "%x" "%x.jar"
  • Find and rename all the .pack.jar files present in the tools folder and subfolders:

    > dir /B /S *.pack.jar
    > ren C:\jdk_8\tools\jre\lib\charsets.pack.jar charsets.jar
    > ren C:\jdk_8\tools\jre\lib\deploy.pack.jar deploy.jar
    > ren C:\jdk_8\tools\jre\lib\javaws.pack.jar javaws.jar
    > ren C:\jdk_8\tools\jre\lib\jsse.pack.jar jsse.jar
    > ren C:\jdk_8\tools\jre\lib\plugin.pack.jar plugin.jar
    > ren C:\jdk_8\tools\jre\lib\rt.pack.jar rt.jar
    > ren C:\jdk_8\tools\jre\lib\ext\jfxrt.pack.jar jfxrt.jar
    > ren C:\jdk_8\tools\jre\lib\ext\localedata.pack.jar localedata.jar
    > ren C:\jdk_8\tools\lib\tools.pack.jar tools.jar
  • Test this has worked OK:

    C:\jdk_8\tools\bin\java -version
    java version "1.8.0-ea"
    Java(TM) SE Runtime Environment (build 1.8.0-ea-b121)
    Java HotSpot(TM) Client VM (build 25.0-b63, mixed mode)