Run them in different locations with different addresses (5432 & 5433 for example) see this thread:http://archives.postgresql.org/pgsql-admin/2008-02/msg00084.php Brent Wood GIS/DBA consultant NIWA +64 (4) 4 386-0300 ________________________________________ From: pgsql-general-owner@xxxxxxxxxxxxxx [pgsql-general-owner@xxxxxxxxxxxxxx] on behalf of Heine Ferreira [heine.ferreira@xxxxxxxxx] Sent: Friday, February 17, 2012 11:11 AM To: pgsql-general@xxxxxxxxxxxxxx Subject: running multiple versions Hi Is it possible to run more than one instance of Postgresql on Windows? Can you run different versions simultaneously? If so can you run different minor versions or only different major versions? If possible how do you do this? Thanks H.F. -- Please consider the environment before printing this email. NIWA is the trading name of the National Institute of Water & Atmospheric Research Ltd. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general