Program: Psi+
License: GNU GPL v2 (https://code.google.com/p/psi-dev/)
Description: XMPP/Jabber client
Website: http://psi-plus.com/ https://code.google.com/p/psi-dev/
Other: Already have portability feature http://psi-plus.com/wiki/en:faq#question_4how_to_make_psi_portable_under...
You need to rename main exe file OR set specific env variable.