FHFS 2.1.x is now fully portable and can be installed anywhere and copied between computers!
UPGRADING: When upgrading an FHFS version, DO NOT download the fresh install ZIP file! Instead, browse all files and find an upgrade package. There will be different ones depending on what version you are upgrading from. Before you upgrade, make sure the server is SWITCHED OFF!
For help, go to http://sourceforge.net/projects/fhfs/