Just curious... how will it work for MAC/Linux? Neither supports EXE or anything like it, and don't they require installing?
Even if it was EXE, there isn't WINE for MACs.
Mac/Linux still have binaries. I'm not sure about Mac, but the usual way to install stuff in Linux is to download a 'package' which installs itself (e.g. DEB, RPM).
And there is Wine for Mac OS X (but ENIGMA won't use it, obviously). It's called Darwine.