Yup, that one happens to be "Mitsubishi Projector Keyset 1".
Absolutely; that is how all of the LIRC config files are created (as well as a fair number of the ones on hifi-remotes, although most of those folks have connected a "learning remote" up to their computers). There are a number of ways to do it, but the one I'm most familiar with is to use the LIRC server itself. It is, of course, designed to run on Linux, but there are ports available for Windows and Mac as well...