the following information was extracted from Morena's website.

Requirements of taking advantage of Morena.
for TWAIN support
  • Microsoft Windows (95 or later, NT or later) or Apple MacOS X (10.2 or later) operating system with Java2 JRE,

  • proper version of Twain Source Manager and at least one Twain Source installed.

SANE support:
  • any operating system with Java2 JRE,

  • available server with saned daemon and at least one SANE backend installed.