While "epm1960free7z free" appears to refer to a specific archive file ( .7z ), it is often associated with specialized software solutions or legacy data unlocking tools.
EPM has been integrated into the package collections of major BSD systems, including FreeBSD, NetBSD, and OpenBSD, where it is often available as devel/epm . The program is available under the GNU GPL v2 open-source license and can be extended with product logos, "readme" files, and click-wrap licenses.